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230566686 = 2375489683
BaseRepresentation
bin11011011111000…
…10101100011110
3121001212000000220
431233202230132
5433011113221
634513502210
75466533040
oct1557425436
9531760026
10230566686
11109170189
1265271966
13389ca1bc
142289ba90
15153960c6
hexdbe2b1e

230566686 has 16 divisors (see below), whose sum is σ = 527009664. Its totient is φ = 65876184.

The previous prime is 230566639. The next prime is 230566709. The reversal of 230566686 is 686665032.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 5489683 = 230566686 / (2 + 3 + 0 + 5 + 6 + 6 + 6 + 8 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744800 + ... + 2744883.

It is an arithmetic number, because the mean of its divisors is an integer number (32938104).

Almost surely, 2230566686 is an apocalyptic number.

230566686 is an abundant number, since it is smaller than the sum of its proper divisors (296442978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230566686 is a wasteful number, since it uses less digits than its factorization.

230566686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489695.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 230566686 is about 15184.4224783164. The cubic root of 230566686 is about 613.1953494600.

The spelling of 230566686 in words is "two hundred thirty million, five hundred sixty-six thousand, six hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 42 5489683 10979366 16469049 32938098 38427781 76855562 115283343 230566686