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231552532442412 = 223211178699661949
BaseRepresentation
bin110100101001100010000110…
…011100010110110100101100
31010100212012120010000112022100
4310221202012130112310230
5220322224041301124122
62140245433115015100
766526055420024256
oct6451420634266454
91110765503015270
10231552532442412
1167863972002255
1221b7852273a490
139c2840543247c
1441272b9424cd6
151bb832d090aac
hexd29886716d2c

231552532442412 has 72 divisors (see below), whose sum is σ = 585905581170000. Its totient is φ = 77106096643968.

The previous prime is 231552532442359. The next prime is 231552532442479. The reversal of 231552532442412 is 214244235255132.

231552532442412 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 52 + 532 + 44 + 24 + 1 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349473214 + ... + 350135162.

It is an arithmetic number, because the mean of its divisors is an integer number (8137577516250).

Almost surely, 2231552532442412 is an apocalyptic number.

It is an amenable number.

231552532442412 is an abundant number, since it is smaller than the sum of its proper divisors (354353048727588).

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

231552532442412 is a wasteful number, since it uses less digits than its factorization.

231552532442412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671775 (or 671770 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 231552532442412 its reverse (214244235255132), we get a palindrome (445796767697544).

The spelling of 231552532442412 in words is "two hundred thirty-one trillion, five hundred fifty-two billion, five hundred thirty-two million, four hundred forty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 1117 2234 3351 4468 6702 8699 10053 13404 17398 20106 26097 34796 40212 52194 78291 104388 156582 313164 661949 1323898 1985847 2647796 3971694 5957541 7943388 9716783 11915082 19433566 23830164 29150349 38867132 58300698 87451047 116601396 174902094 349804188 739397033 1478794066 2218191099 2957588132 4436382198 5758294351 6654573297 8872764396 11516588702 13309146594 17274883053 23033177404 26618293188 34549766106 51824649159 69099532212 103649298318 207298596636 6432014790067 12864029580134 19296044370201 25728059160268 38592088740402 57888133110603 77184177480804 115776266221206 231552532442412