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230954638 = 22383241251
BaseRepresentation
bin11011100010000…
…01011010001110
3121002120201012111
431301001122032
5433111022023
634530054234
75503040065
oct1561013216
9532521174
10230954638
11109405702
126541a37a
1338b04965
142295d1dc
151542100d
hexdc4168e

230954638 has 32 divisors (see below), whose sum is σ = 368831232. Its totient is φ = 108240000.

The previous prime is 230954627. The next prime is 230954653. The reversal of 230954638 is 836459032.

It is a super-2 number, since 2×2309546382 = 106680089627422088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 230954638.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 920013 + ... + 920263.

It is an arithmetic number, because the mean of its divisors is an integer number (11525976).

Almost surely, 2230954638 is an apocalyptic number.

230954638 is a deficient number, since it is larger than the sum of its proper divisors (137876594).

230954638 is a wasteful number, since it uses less digits than its factorization.

230954638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 230954638 is about 15197.1917800625. The cubic root of 230954638 is about 613.5390780156.

The spelling of 230954638 in words is "two hundred thirty million, nine hundred fifty-four thousand, six hundred thirty-eight".

Divisors: 1 2 23 46 83 166 241 251 482 502 1909 3818 5543 5773 11086 11546 20003 20833 40006 41666 60491 120982 460069 479159 920138 958318 1391293 2782586 5020753 10041506 115477319 230954638