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112310131212 = 22326151143047
BaseRepresentation
bin110100010011000110…
…1001001101000001100
3101201220002022210122100
41220212031021220030
53320002343144322
6123332231515100
711054102235606
oct1504615115014
9351802283570
10112310131212
11436a3160964
1219924528a90
13a78acab556
145615d2c176
152dc4d1adac
hex1a26349a0c

112310131212 has 36 divisors (see below), whose sum is σ = 288549076816. Its totient is φ = 36822993120.

The previous prime is 112310131211. The next prime is 112310131223. The reversal of 112310131212 is 212131013211.

112310131212 is a `hidden beast` number, since 1 + 12 + 310 + 131 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1123101312122 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (112310131211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25569328 + ... + 25573719.

Almost surely, 2112310131212 is an apocalyptic number.

112310131212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112310131212 is an abundant number, since it is smaller than the sum of its proper divisors (176238945604).

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

112310131212 is a wasteful number, since it uses less digits than its factorization.

112310131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51143118 (or 51143113 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 112310131212 its reverse (212131013211), we get a palindrome (324441144423).

The spelling of 112310131212 in words is "one hundred twelve billion, three hundred ten million, one hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 61 122 183 244 366 549 732 1098 2196 51143047 102286094 153429141 204572188 306858282 460287423 613716564 920574846 1841149692 3119725867 6239451734 9359177601 12478903468 18718355202 28077532803 37436710404 56155065606 112310131212