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230889057 = 37179239257
BaseRepresentation
bin11011100001100…
…01011001100001
3121002110101020120
431300301121201
5433101422212
634524430453
75502344640
oct1560613141
9532411216
10230889057
11109370403
12653a8429
1338ab0b59
1422943357
151540b88c
hexdc31661

230889057 has 32 divisors (see below), whose sum is σ = 356659200. Its totient is φ = 130142208.

The previous prime is 230888993. The next prime is 230889073. The reversal of 230889057 is 750988032.

It is not a de Polignac number, because 230889057 - 26 = 230888993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230889077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 898273 + ... + 898529.

It is an arithmetic number, because the mean of its divisors is an integer number (11145600).

Almost surely, 2230889057 is an apocalyptic number.

It is an amenable number.

230889057 is a deficient number, since it is larger than the sum of its proper divisors (125770143).

230889057 is a wasteful number, since it uses less digits than its factorization.

230889057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 230889057 is about 15195.0339585010. The cubic root of 230889057 is about 613.4809997775.

The spelling of 230889057 in words is "two hundred thirty million, eight hundred eighty-nine thousand, fifty-seven".

Divisors: 1 3 7 21 179 239 257 537 717 771 1253 1673 1799 3759 5019 5397 42781 46003 61423 128343 138009 184269 299467 322021 429961 898401 966063 1289883 10994717 32984151 76963019 230889057