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231882152 = 2328985269
BaseRepresentation
bin11011101001000…
…11110110101000
3121011022211111212
431310203312220
5433330212102
635002012252
75513652155
oct1564436650
9534284455
10231882152
11109989547
12657a7088
133906ab98
1422b2122c
1515555c52
hexdd23da8

231882152 has 8 divisors (see below), whose sum is σ = 434779050. Its totient is φ = 115941072.

The previous prime is 231882151. The next prime is 231882179. The reversal of 231882152 is 251288132.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 231831076 + 51076 = 15226^2 + 226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2318821522 = 107538664832302208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231882151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14492627 + ... + 14492642.

Almost surely, 2231882152 is an apocalyptic number.

It is an amenable number.

231882152 is a deficient number, since it is larger than the sum of its proper divisors (202896898).

231882152 is a wasteful number, since it uses less digits than its factorization.

231882152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28985275 (or 28985271 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 231882152 is about 15227.6771702056. The cubic root of 231882152 is about 614.3593054486.

The spelling of 231882152 in words is "two hundred thirty-one million, eight hundred eighty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 28985269 57970538 115941076 231882152