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26187006976 = 2101323892
BaseRepresentation
bin11000011000110111…
…100000010000000000
32111121000110210021021
4120120313200100000
5412112333210401
620010302235224
71614636613054
oct303067402000
974530423237
1026187006976
1110118978a29
1250a9b85b14
13261442ba00
1413a5c93c64
15a33ee32a1
hex618de0400

26187006976 has 99 divisors (see below), whose sum is σ = 56831092311. Its totient is φ = 12055240704.

The previous prime is 26187006961. The next prime is 26187007003. The reversal of 26187006976 is 67960078162.

It is a happy number.

The square root of 26187006976 is 161824.

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

It can be written as a sum of positive squares in 4 ways, for example, as 10064102400 + 16122904576 = 100320^2 + 126976^2 .

It is a super-2 number, since 2×261870069762 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 67318590 + ... + 67318978.

Almost surely, 226187006976 is an apocalyptic number.

26187006976 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26187006976 is the 161824-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26187006976

26187006976 is an abundant number, since it is smaller than the sum of its proper divisors (30644085335).

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

26187006976 is an frugal number, since it uses more digits than its factorization.

26187006976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 26187006976 in words is "twenty-six billion, one hundred eighty-seven million, six thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 169 208 256 338 389 416 512 676 778 832 1024 1352 1556 1664 2704 3112 3328 5057 5408 6224 6656 10114 10816 12448 13312 20228 21632 24896 40456 43264 49792 65741 80912 86528 99584 131482 151321 161824 173056 199168 262964 302642 323648 398336 525928 605284 647296 1051856 1210568 1294592 1967173 2103712 2421136 2589184 3934346 4207424 4842272 5178368 7868692 8414848 9684544 15737384 16829696 19369088 25573249 31474768 33659392 38738176 51146498 62949536 67318784 77476352 102292996 125899072 154952704 204585992 251798144 409171984 503596288 818343968 1007192576 1636687936 2014385152 3273375872 6546751744 13093503488 26187006976