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11872256 = 211111731
BaseRepresentation
bin101101010010…
…100000000000
3211100011200012
4231102200000
511014403011
61102244052
7202624664
oct55224000
924304605
1011872256
116779890
123b86628
1325c8b06
1418108a4
151097a8b
hexb52800

11872256 has 96 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 4915200.

The previous prime is 11872249. The next prime is 11872271. The reversal of 11872256 is 65227811.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382961 + ... + 382991.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 211872256 is an apocalyptic number.

11872256 is a gapful number since it is divisible by the number (16) 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 11872256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

11872256 is an abundant number, since it is smaller than the sum of its proper divisors (16432384).

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

11872256 is a wasteful number, since it uses less digits than its factorization.

11872256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 61 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 11872256 is about 3445.6140236538. The cubic root of 11872256 is about 228.1275576369.

It can be divided in two parts, 1187 and 2256, that added together give a palindrome (3443).

The spelling of 11872256 in words is "eleven million, eight hundred seventy-two thousand, two hundred fifty-six".

Divisors: 1 2 4 8 11 16 17 22 31 32 34 44 62 64 68 88 124 128 136 176 187 248 256 272 341 352 374 496 512 527 544 682 704 748 992 1024 1054 1088 1364 1408 1496 1984 2048 2108 2176 2728 2816 2992 3968 4216 4352 5456 5632 5797 5984 7936 8432 8704 10912 11264 11594 11968 15872 16864 17408 21824 22528 23188 23936 31744 33728 34816 43648 46376 47872 63488 67456 87296 92752 95744 134912 174592 185504 191488 269824 349184 371008 382976 539648 698368 742016 1079296 1484032 2968064 5936128 11872256