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56527830 = 23251673761
BaseRepresentation
bin1101011110100…
…0101111010110
310221100220121100
43113220233112
5103432342310
65335330530
71254323112
oct327505726
9127326540
1056527830
11299aa217
1216b20a46
13b932728
147716742
154e68ec0
hex35e8bd6

56527830 has 48 divisors (see below), whose sum is σ = 147891744. Its totient is φ = 14979840.

The previous prime is 56527829. The next prime is 56527837. The reversal of 56527830 is 3872565.

56527830 is a `hidden beast` number, since 56 + 527 + 83 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56527837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13150 + ... + 16910.

It is an arithmetic number, because the mean of its divisors is an integer number (3081078).

Almost surely, 256527830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56527830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73945872).

56527830 is an abundant number, since it is smaller than the sum of its proper divisors (91363914).

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

56527830 is a wasteful number, since it uses less digits than its factorization.

56527830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941 (or 3938 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 56527830 is about 7518.4991853428. The cubic root of 56527830 is about 383.7845063703.

The spelling of 56527830 in words is "fifty-six million, five hundred twenty-seven thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 167 334 501 835 1002 1503 1670 2505 3006 3761 5010 7515 7522 11283 15030 18805 22566 33849 37610 56415 67698 112830 169245 338490 628087 1256174 1884261 3140435 3768522 5652783 6280870 9421305 11305566 18842610 28263915 56527830