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239797981132 = 221715722461407
BaseRepresentation
bin1101111101010100010…
…0101100111111001100
3211220221221012121012121
43133111010230333030
512412101240344012
6302054530542324
723216263131343
oct3372504547714
9756857177177
10239797981132
11927747884a6
123a583a379a4
13197c758b538
14b86b902b5a
156387353a07
hex37d512cfcc

239797981132 has 24 divisors (see below), whose sum is σ = 447161710464. Its totient is φ = 112127338752.

The previous prime is 239797981103. The next prime is 239797981139. The reversal of 239797981132 is 231189797932.

It is not an unprimeable number, because it can be changed into a prime (239797981139) 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, 11220028 + ... + 11241379.

It is an arithmetic number, because the mean of its divisors is an integer number (18631737936).

Almost surely, 2239797981132 is an apocalyptic number.

It is an amenable number.

239797981132 is a deficient number, since it is larger than the sum of its proper divisors (207363729332).

239797981132 is a wasteful number, since it uses less digits than its factorization.

239797981132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22461585 (or 22461583 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 61.

The spelling of 239797981132 in words is "two hundred thirty-nine billion, seven hundred ninety-seven million, nine hundred eighty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 157 314 628 2669 5338 10676 22461407 44922814 89845628 381843919 763687838 1527375676 3526440899 7052881798 14105763596 59949495283 119898990566 239797981132