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232061257 = 317485847
BaseRepresentation
bin11011101010011…
…11100101001001
3121011122221012101
431311033211021
5433401430012
635005513401
75515326301
oct1565174511
9534587171
10232061257
11109aa106a
1265872861
133910156c
1422b6a601
151558dd57
hexdd4f949

232061257 has 4 divisors (see below), whose sum is σ = 239547136. Its totient is φ = 224575380.

The previous prime is 232061251. The next prime is 232061293. The reversal of 232061257 is 752160232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232061257 - 211 = 232059209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232061251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3742893 + ... + 3742954.

It is an arithmetic number, because the mean of its divisors is an integer number (59886784).

Almost surely, 2232061257 is an apocalyptic number.

It is an amenable number.

232061257 is a deficient number, since it is larger than the sum of its proper divisors (7485879).

232061257 is an equidigital number, since it uses as much as digits as its factorization.

232061257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485878.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 232061257 is about 15233.5569385485. The cubic root of 232061257 is about 614.5174410998.

The spelling of 232061257 in words is "two hundred thirty-two million, sixty-one thousand, two hundred fifty-seven".

Divisors: 1 31 7485847 232061257