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231552431404255 = 51331333287344791
BaseRepresentation
bin110100101001100010000000…
…011010111011010011011111
31010100212012022001220021000101
4310221202000122323103133
5220322223334414414010
62140245415105241531
766526053052146343
oct6451420032732337
91110765261807011
10231552431404255
116786391aa71845
1221b784b49332a7
139c283ba517290
1441272a9c43623
151bb832428373a
hexd298806bb4df

231552431404255 has 32 divisors (see below), whose sum is σ = 308891617026048. Its totient is φ = 165475699113600.

The previous prime is 231552431404243. The next prime is 231552431404433. The reversal of 231552431404255 is 552404134255132.

231552431404255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231552431404255 - 29 = 231552431403743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 671400910 + ... + 671745700.

It is an arithmetic number, because the mean of its divisors is an integer number (9652863032064).

Almost surely, 2231552431404255 is an apocalyptic number.

231552431404255 is a deficient number, since it is larger than the sum of its proper divisors (77339185621793).

231552431404255 is a wasteful number, since it uses less digits than its factorization.

231552431404255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678127.

The product of its (nonzero) digits is 2880000, while the sum is 46.

Adding to 231552431404255 its reverse (552404134255132), we get a palindrome (783956565659387).

The spelling of 231552431404255 in words is "two hundred thirty-one trillion, five hundred fifty-two billion, four hundred thirty-one million, four hundred four thousand, two hundred fifty-five".

Divisors: 1 5 13 31 65 155 403 2015 333287 344791 1666435 1723955 4332731 4482283 10331897 10688521 21663655 22411415 51659485 53442605 134314661 138950773 671573305 694753865 114914358017 574571790085 1493886654221 3562345098527 7469433271105 17811725492635 46310486280851 231552431404255