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56763860 = 22514931901
BaseRepresentation
bin1101100010001…
…0010111010100
310221210220101012
43120202113110
5104012420420
65344351352
71256325206
oct330422724
9127726335
1056763860
112a05058a
1217015558
13b9b5caa
147778776
154eb3dc5
hex36225d4

56763860 has 24 divisors (see below), whose sum is σ = 119346696. Its totient is φ = 22678400.

The previous prime is 56763859. The next prime is 56763869. The reversal of 56763860 is 6836765.

Added to its reverse (6836765) it gives a square (63600625 = 79752).

It can be written as a sum of positive squares in 4 ways, for example, as 4519876 + 52243984 = 2126^2 + 7228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56763869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28910 + ... + 30810.

It is an arithmetic number, because the mean of its divisors is an integer number (4972779).

Almost surely, 256763860 is an apocalyptic number.

It is an amenable number.

56763860 is an abundant number, since it is smaller than the sum of its proper divisors (62582836).

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

56763860 is a wasteful number, since it uses less digits than its factorization.

56763860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3401 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 56763860 is about 7534.1794510086. The cubic root of 56763860 is about 384.3179242813.

Adding to 56763860 its reverse (6836765), we get a square (63600625 = 79752).

The spelling of 56763860 in words is "fifty-six million, seven hundred sixty-three thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 1493 1901 2986 3802 5972 7465 7604 9505 14930 19010 29860 38020 2838193 5676386 11352772 14190965 28381930 56763860