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10212775488 = 26342967933
BaseRepresentation
bin10011000001011101…
…01001011001000000
3222100202010202020000
421200232221121000
5131403432303423
64405223120000
7511040105436
oct114056513100
928322122200
1010212775488
114370933423
121b902a3000
13c69ac8726
146cc50cd56
153eb8dc843
hex260ba9640

10212775488 has 140 divisors (see below), whose sum is σ = 31318253340. Its totient is φ = 3286821888.

The previous prime is 10212775487. The next prime is 10212775493. The reversal of 10212775488 is 88457721201.

10212775488 is a `hidden beast` number, since 10 + 21 + 2 + 77 + 548 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7665352704 + 2547422784 = 87552^2 + 50472^2 .

It is not an unprimeable number, because it can be changed into a prime (10212775487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 116370 + ... + 184302.

Almost surely, 210212775488 is an apocalyptic number.

10212775488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10212775488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15659126670).

10212775488 is an abundant number, since it is smaller than the sum of its proper divisors (21105477852).

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

10212775488 is an equidigital number, since it uses as much as digits as its factorization.

10212775488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67986 (or 67967 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 10212775488 in words is "ten billion, two hundred twelve million, seven hundred seventy-five thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 29 32 36 48 54 58 64 72 81 87 96 108 116 144 162 174 192 216 232 261 288 324 348 432 464 522 576 648 696 783 864 928 1044 1296 1392 1566 1728 1856 2088 2349 2592 2784 3132 4176 4698 5184 5568 6264 8352 9396 12528 16704 18792 25056 37584 50112 67933 75168 135866 150336 203799 271732 407598 543464 611397 815196 1086928 1222794 1630392 1834191 1970057 2173856 2445588 3260784 3668382 3940114 4347712 4891176 5502573 5910171 6521568 7336764 7880228 9782352 11005146 11820342 13043136 14673528 15760456 17730513 19564704 22010292 23640684 29347056 31520912 35461026 39129408 44020584 47281368 53191539 58694112 63041824 70922052 88041168 94562736 106383078 117388224 126083648 141844104 159574617 176082336 189125472 212766156 283688208 319149234 352164672 378250944 425532312 567376416 638298468 851064624 1134752832 1276596936 1702129248 2553193872 3404258496 5106387744 10212775488