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232055551 = 7136174133
BaseRepresentation
bin11011101010011…
…10001011111111
3121011122122101001
431311032023333
5433401234201
635005431131
75515303540
oct1565161377
9534578331
10232055551
11109a97852
126586b4a7
13390cbaa0
1422b684c7
151558c301
hexdd4e2ff

232055551 has 16 divisors (see below), whose sum is σ = 286138944. Its totient is φ = 183262464.

The previous prime is 232055519. The next prime is 232055567. The reversal of 232055551 is 155550232.

It is not a de Polignac number, because 232055551 - 25 = 232055519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232055581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54081 + ... + 58213.

It is an arithmetic number, because the mean of its divisors is an integer number (17883684).

Almost surely, 2232055551 is an apocalyptic number.

232055551 is a deficient number, since it is larger than the sum of its proper divisors (54083393).

232055551 is a wasteful number, since it uses less digits than its factorization.

232055551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 232055551 is about 15233.3696534943. The cubic root of 232055551 is about 614.5124044049.

The spelling of 232055551 in words is "two hundred thirty-two million, fifty-five thousand, five hundred fifty-one".

Divisors: 1 7 13 91 617 4133 4319 8021 28931 53729 56147 376103 2550061 17850427 33150793 232055551