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231383505383132 = 2257845876345783
BaseRepresentation
bin110100100111000100101011…
…101001010010111011011100
31010100021001021022210020221112
4310213010223221102323130
5220311441404334230012
62140040040454321152
766510622651520054
oct6447045351227334
91110231238706845
10231383505383132
11677a92146a6923
1221b4b80b9591b8
139c154a8c2cc6b
14411d042a94564
151bb3c38d7e122
hexd2712ba52edc

231383505383132 has 6 divisors (see below), whose sum is σ = 404921134420488. Its totient is φ = 115691752691564.

The previous prime is 231383505383039. The next prime is 231383505383137.

231383505383132 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×2313835053831322 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231383505383137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28922938172888 + ... + 28922938172895.

It is an arithmetic number, because the mean of its divisors is an integer number (67486855736748).

Almost surely, 2231383505383132 is an apocalyptic number.

It is an amenable number.

231383505383132 is a deficient number, since it is larger than the sum of its proper divisors (173537629037356).

231383505383132 is a wasteful number, since it uses less digits than its factorization.

231383505383132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57845876345787 (or 57845876345785 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 231383505383132 in words is "two hundred thirty-one trillion, three hundred eighty-three billion, five hundred five million, three hundred eighty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 57845876345783 115691752691566 231383505383132