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231312020213132 = 22276487209152709
BaseRepresentation
bin110100100110000010000110…
…110011000000110110001100
31010100000012202101211100211122
4310212002012303000312030
5220304304004133310012
62135543135231140112
766502512331556525
oct6446020663006614
91110005671740748
10231312020213132
1167780971133631
1221b3999b674638
139c0b825bb64c1
1441197c0b1984c
151bb1e531a2e72
hexd26086cc0d8c

231312020213132 has 12 divisors (see below), whose sum is σ = 404797501377360. Its totient is φ = 115655591248176.

The previous prime is 231312020213063. The next prime is 231312020213159.

231312020213132 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103470407 + ... + 105682302.

It is an arithmetic number, because the mean of its divisors is an integer number (33733125114780).

Almost surely, 2231312020213132 is an apocalyptic number.

It is an amenable number.

231312020213132 is a deficient number, since it is larger than the sum of its proper divisors (173485481164228).

231312020213132 is a wasteful number, since it uses less digits than its factorization.

231312020213132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209429200 (or 209429198 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 231312020213132 in words is "two hundred thirty-one trillion, three hundred twelve billion, twenty million, two hundred thirteen thousand, one hundred thirty-two".

Divisors: 1 2 4 276487 552974 1105948 209152709 418305418 836610836 57828005053283 115656010106566 231312020213132