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230505054 = 231312372389
BaseRepresentation
bin11011011110100…
…11101001011110
3121001201212111020
431233103221132
5433002130204
634512305010
75466155253
oct1557235136
9531655436
10230505054
1110912894a
1265242166
13389a8130
142288342a
1515382bd9
hexdbd3a5e

230505054 has 32 divisors (see below), whose sum is σ = 497081760. Its totient is φ = 70837632.

The previous prime is 230505053. The next prime is 230505059. The reversal of 230505054 is 450505032.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230505053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95292 + ... + 97680.

It is an arithmetic number, because the mean of its divisors is an integer number (15533805).

Almost surely, 2230505054 is an apocalyptic number.

230505054 is an abundant number, since it is smaller than the sum of its proper divisors (266576706).

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

230505054 is a wasteful number, since it uses less digits than its factorization.

230505054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 230505054 is about 15182.3928944024. The cubic root of 230505054 is about 613.1407075336.

The spelling of 230505054 in words is "two hundred thirty million, five hundred five thousand, fifty-four".

Divisors: 1 2 3 6 13 26 39 78 1237 2389 2474 3711 4778 7167 7422 14334 16081 31057 32162 48243 62114 93171 96486 186342 2955193 5910386 8865579 17731158 38417509 76835018 115252527 230505054