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231941057 is a prime number
BaseRepresentation
bin11011101001100…
…10001111000001
3121011102211022112
431310302033001
5433334103212
635003145105
75514315665
oct1564621701
9534384275
10231941057
11109a19827
1265815195
133908b93a
1422b388a5
1515568422
hexdd323c1

231941057 has 2 divisors, whose sum is σ = 231941058. Its totient is φ = 231941056.

The previous prime is 231941033. The next prime is 231941063. The reversal of 231941057 is 750149132.

231941057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229855921 + 2085136 = 15161^2 + 1444^2 .

It is a cyclic number.

It is not a de Polignac number, because 231941057 - 214 = 231924673 is a prime.

It is not a weakly prime, because it can be changed into another prime (231947057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115970528 + 115970529.

It is an arithmetic number, because the mean of its divisors is an integer number (115970529).

Almost surely, 2231941057 is an apocalyptic number.

It is an amenable number.

231941057 is a deficient number, since it is larger than the sum of its proper divisors (1).

231941057 is an equidigital number, since it uses as much as digits as its factorization.

231941057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 231941057 is about 15229.6111900468. The cubic root of 231941057 is about 614.4113229219.

The spelling of 231941057 in words is "two hundred thirty-one million, nine hundred forty-one thousand, fifty-seven".