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56241820 = 22510925799
BaseRepresentation
bin1101011010001…
…0111010011100
310220211101021101
43112202322130
5103344214240
65325242444
71252022215
oct326427234
9126741241
1056241820
1129824348
1216a03424
13b8624ab
14768040c
154e0e39a
hex35a2e9c

56241820 has 24 divisors (see below), whose sum is σ = 119196000. Its totient is φ = 22289472.

The previous prime is 56241733. The next prime is 56241833. The reversal of 56241820 is 2814265.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10720 + ... + 15079.

It is an arithmetic number, because the mean of its divisors is an integer number (4966500).

Almost surely, 256241820 is an apocalyptic number.

It is an amenable number.

56241820 is an abundant number, since it is smaller than the sum of its proper divisors (62954180).

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

56241820 is a wasteful number, since it uses less digits than its factorization.

56241820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25917 (or 25915 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 56241820 is about 7499.4546468393. The cubic root of 56241820 is about 383.1361422263.

The spelling of 56241820 in words is "fifty-six million, two hundred forty-one thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 25799 51598 103196 128995 257990 515980 2812091 5624182 11248364 14060455 28120910 56241820