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231949132 = 2257987283
BaseRepresentation
bin11011101001101…
…00001101001100
3121011110020101121
431310310031030
5433334333012
635003250324
75514351352
oct1564641514
9534406347
10231949132
11109a248a8
12658199a4
133909250c
1422b3b7d2
151556aa07
hexdd3434c

231949132 has 6 divisors (see below), whose sum is σ = 405910988. Its totient is φ = 115974564.

The previous prime is 231949129. The next prime is 231949141.

231949132 is nontrivially palindromic in base 10.

231949132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28993638 + ... + 28993645.

Almost surely, 2231949132 is an apocalyptic number.

It is an amenable number.

231949132 is a deficient number, since it is larger than the sum of its proper divisors (173961856).

231949132 is a wasteful number, since it uses less digits than its factorization.

231949132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57987287 (or 57987285 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 231949132 is about 15229.8762962803. The cubic root of 231949132 is about 614.4184530579.

The spelling of 231949132 in words is "two hundred thirty-one million, nine hundred forty-nine thousand, one hundred thirty-two".

Divisors: 1 2 4 57987283 115974566 231949132