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113885325972 = 223311110986441
BaseRepresentation
bin110101000010000011…
…0000010101010010100
3101212221212022222122000
41222010012002222110
53331214120412342
6124152421435300
711141120204265
oct1520406025224
9355855288560
10113885325972
1144331330010
121a0a3b6bb30
13a97c43a962
14572520696c
152e6826a44c
hex1a84182a94

113885325972 has 96 divisors (see below), whose sum is σ = 322394083200. Its totient is φ = 34479187200.

The previous prime is 113885325947. The next prime is 113885325973. The reversal of 113885325972 is 279523588311.

113885325972 is a `hidden beast` number, since 1 + 1 + 38 + 8 + 532 + 5 + 9 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113885325973) 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 31 ways as a sum of consecutive naturals, for example, 1274272 + ... + 1360712.

It is an arithmetic number, because the mean of its divisors is an integer number (3358271700).

Almost surely, 2113885325972 is an apocalyptic number.

113885325972 is a gapful number since it is divisible by the number (12) 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 113885325972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161197041600).

113885325972 is an abundant number, since it is smaller than the sum of its proper divisors (208508757228).

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

113885325972 is a wasteful number, since it uses less digits than its factorization.

113885325972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87574 (or 87566 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 113885325972 in words is "one hundred thirteen billion, eight hundred eighty-five million, three hundred twenty-five thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 9 11 12 18 22 27 33 36 44 54 66 99 108 132 198 297 396 594 1109 1188 2218 3327 4436 6654 9981 12199 13308 19962 24398 29943 36597 39924 48796 59886 73194 86441 109791 119772 146388 172882 219582 259323 329373 345764 439164 518646 658746 777969 950851 1037292 1317492 1555938 1901702 2333907 2852553 3111876 3803404 4667814 5705106 8557659 9335628 11410212 17115318 25672977 34230636 51345954 95863069 102691908 191726138 287589207 383452276 575178414 862767621 1054493759 1150356828 1725535242 2108987518 2588302863 3163481277 3451070484 4217975036 5176605726 6326962554 9490443831 10353211452 12653925108 18980887662 28471331493 37961775324 56942662986 113885325972