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231142243110044 = 22737639921931727
BaseRepresentation
bin110100100011100011111111…
…010010110000110010011100
31010022101222112100020220210112
4310203203333102300302130
5220244013303214010134
62135333140334425152
766454322155161560
oct6443437722606234
91108358470226715
10231142243110044
1167715969408192
1221b10ab96621b8
139bc880a1a25a6
1441114b69056a0
151bac8181d61ce
hexd238ff4b0c9c

231142243110044 has 24 divisors (see below), whose sum is σ = 462285735475200. Its totient is φ = 99060693635376.

The previous prime is 231142243110043. The next prime is 231142243110101. The reversal of 231142243110044 is 440011342241132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231142243110043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426692 + ... + 21505035.

It is an arithmetic number, because the mean of its divisors is an integer number (19261905644800).

Almost surely, 2231142243110044 is an apocalyptic number.

It is an amenable number.

231142243110044 is an abundant number, since it is smaller than the sum of its proper divisors (231143492365156).

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

231142243110044 is a wasteful number, since it uses less digits than its factorization.

231142243110044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22308137 (or 22308135 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 231142243110044 its reverse (440011342241132), we get a palindrome (671153585351176).

The spelling of 231142243110044 in words is "two hundred thirty-one trillion, one hundred forty-two billion, two hundred forty-three million, one hundred ten thousand, forty-four".

Divisors: 1 2 4 7 14 28 376399 752798 1505596 2634793 5269586 10539172 21931727 43863454 87726908 153522089 307044178 614088356 8255080111073 16510160222146 33020320444292 57785560777511 115571121555022 231142243110044