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230031311112 = 23323194879321
BaseRepresentation
bin1101011000111011101…
…1110100000100001000
3210222202021111100122100
43112032323310010020
512232101003423422
6253401441153400
722422250611621
oct3261673640410
9728667440570
10230031311112
1189612750789
12386b902b860
13188cc027c55
14b1c275aa48
155eb4bd57ac
hex358eef4108

230031311112 has 24 divisors (see below), whose sum is σ = 623001467790. Its totient is φ = 76677103680.

The previous prime is 230031311099. The next prime is 230031311137. The reversal of 230031311112 is 211113130032.

230031311112 is a `hidden beast` number, since 230 + 0 + 313 + 11 + 112 = 666.

It can be written as a sum of positive squares in only one way, i.e., 230002731396 + 28579716 = 479586^2 + 5346^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1597439589 + ... + 1597439732.

Almost surely, 2230031311112 is an apocalyptic number.

It is an amenable number.

230031311112 is an abundant number, since it is smaller than the sum of its proper divisors (392970156678).

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

230031311112 is a wasteful number, since it uses less digits than its factorization.

230031311112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194879333 (or 3194879326 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 230031311112 its reverse (211113130032), we get a palindrome (441144441144).

The spelling of 230031311112 in words is "two hundred thirty billion, thirty-one million, three hundred eleven thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 3194879321 6389758642 9584637963 12779517284 19169275926 25559034568 28753913889 38338551852 57507827778 76677103704 115015655556 230031311112