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230056488 = 233223138923
BaseRepresentation
bin11011011011001…
…10001000101000
3121000220002011200
431231212020220
5432343301423
634454524200
75462306424
oct1555461050
9530802150
10230056488
11108951932
1265066660
133887bbcc
14227a7b84
15152e4d43
hexdb66228

230056488 has 48 divisors (see below), whose sum is σ = 650164320. Its totient is φ = 73350816.

The previous prime is 230056481. The next prime is 230056499. The reversal of 230056488 is 884650032.

230056488 is a `hidden beast` number, since 2 + 3 + 0 + 0 + 5 + 648 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (230056481) 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 11 ways as a sum of consecutive naturals, for example, 67806 + ... + 71117.

It is an arithmetic number, because the mean of its divisors is an integer number (13545090).

Almost surely, 2230056488 is an apocalyptic number.

It is an amenable number.

230056488 is an abundant number, since it is smaller than the sum of its proper divisors (420107832).

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

230056488 is a wasteful number, since it uses less digits than its factorization.

230056488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138958 (or 138951 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 230056488 is about 15167.6131279777. The cubic root of 230056488 is about 612.7427225152.

The spelling of 230056488 in words is "two hundred thirty million, fifty-six thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 36 46 69 72 92 138 184 207 276 414 552 828 1656 138923 277846 416769 555692 833538 1111384 1250307 1667076 2500614 3195229 3334152 5001228 6390458 9585687 10002456 12780916 19171374 25561832 28757061 38342748 57514122 76685496 115028244 230056488