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231530882 = 21110524131
BaseRepresentation
bin11011100110011…
…10000110000010
3121010122222122212
431303032012002
5433232442012
634550302122
75510660102
oct1563160602
9533588585
10231530882
11109769640
1265657942
1338c7702b
1422a6d202
15154d6b22
hexdcce182

231530882 has 8 divisors (see below), whose sum is σ = 378868752. Its totient is φ = 105241300.

The previous prime is 231530881. The next prime is 231530899. The reversal of 231530882 is 288035132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (231530881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5262044 + ... + 5262087.

It is an arithmetic number, because the mean of its divisors is an integer number (47358594).

Almost surely, 2231530882 is an apocalyptic number.

231530882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231530882 is a deficient number, since it is larger than the sum of its proper divisors (147337870).

231530882 is a wasteful number, since it uses less digits than its factorization.

231530882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10524144.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 231530882 is about 15216.1388663485. The cubic root of 231530882 is about 614.0489250025.

The spelling of 231530882 in words is "two hundred thirty-one million, five hundred thirty thousand, eight hundred eighty-two".

Divisors: 1 2 11 22 10524131 21048262 115765441 231530882