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232120232031 = 31373971422593
BaseRepresentation
bin1101100000101101110…
…0011010100001011111
3211012010212011112102210
43120023130122201133
512300340234411111
6254345022051503
722525104263232
oct3301334324137
9735125145383
10232120232031
118a494901a06
1238ba0719b93
1318b72a3702c
14b33dd61419
1560882b00a6
hex360b71a85f

232120232031 has 16 divisors (see below), whose sum is σ = 312538211424. Its totient is φ = 153230229504.

The previous prime is 232120232011. The next prime is 232120232059. The reversal of 232120232031 is 130232021232.

It is a happy number.

It is not a de Polignac number, because 232120232031 - 211 = 232120229983 is a prime.

It is a super-2 number, since 2×2321202320312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232120231989 and 232120232007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232120232011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 548130 + ... + 874463.

It is an arithmetic number, because the mean of its divisors is an integer number (19533638214).

Almost surely, 2232120232031 is an apocalyptic number.

232120232031 is a deficient number, since it is larger than the sum of its proper divisors (80417979393).

232120232031 is a wasteful number, since it uses less digits than its factorization.

232120232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423130.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 232120232031 its reverse (130232021232), we get a palindrome (362352253263).

The spelling of 232120232031 in words is "two hundred thirty-two billion, one hundred twenty million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 3 137 397 411 1191 54389 163167 1422593 4267779 194895241 564769421 584685723 1694308263 77373410677 232120232031