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10868942988864 = 2636152632
BaseRepresentation
bin1001111000101001111101…
…1111000110011001000000
31102111001122022202201000000
42132022133133012121000
52411034043401120424
635041042401000000
72201153353030002
oct236123737063100
942431568681000
1010868942988864
113510546a67764
121276583023000
1360ac2457095c
142980b995c372
1513cad5b523c9
hex9e29f7c6640

10868942988864 has 147 divisors (see below), whose sum is σ = 32339414019163. Its totient is φ = 3622743626112.

The previous prime is 10868942988853. The next prime is 10868942988923. The reversal of 10868942988864 is 46888924986801.

The square root of 10868942988864 is 3296808.

It is a perfect power (a square), and thus also a powerful number.

10868942988864 is a `hidden beast` number, since 108 + 6 + 8 + 9 + 429 + 8 + 8 + 86 + 4 = 666.

10868942988864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×108689429888643 (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 712102897 + ... + 712118159.

Almost surely, 210868942988864 is an apocalyptic number.

10868942988864 is the 3296808-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10868942988864

10868942988864 is an abundant number, since it is smaller than the sum of its proper divisors (21470471030299).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10868942988864 is an frugal number, since it uses more digits than its factorization.

10868942988864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30556 (or 15268 counting only the distinct ones).

The product of its (nonzero) digits is 3057647616, while the sum is 81.

Multiplying 10868942988864 by its sum of digits (81), we get a square (880384382097984 = 296712722).

10868942988864 divided by its sum of digits (81) gives a square (134184481344 = 3663122).

The spelling of 10868942988864 in words is "ten trillion, eight hundred sixty-eight billion, nine hundred forty-two million, nine hundred eighty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 486 576 648 729 864 972 1296 1458 1728 1944 2592 2916 3888 5184 5832 7776 11664 15263 15552 23328 30526 45789 46656 61052 91578 122104 137367 183156 244208 274734 366312 412101 488416 549468 732624 824202 976832 1098936 1236303 1465248 1648404 2197872 2472606 2930496 3296808 3708909 4395744 4945212 6593616 7417818 8791488 9890424 11126727 13187232 14835636 19780848 22253454 26374464 29671272 39561696 44506908 59342544 79123392 89013816 118685088 178027632 232959169 237370176 356055264 465918338 698877507 712110528 931836676 1397755014 1863673352 2096632521 2795510028 3727346704 4193265042 5591020056 6289897563 7454693408 8386530084 11182040112 12579795126 14909386816 16773060168 18869692689 22364080224 25159590252 33546120336 37739385378 44728160448 50319180504 56609078067 67092240672 75478770756 100638361008 113218156134 134184481344 150957541512 169827234201 201276722016 226436312268 301915083024 339654468402 402553444032 452872624536 603830166048 679308936804 905745249072 1207660332096 1358617873608 1811490498144 2717235747216 3622980996288 5434471494432 10868942988864