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56878002 = 2323159889
BaseRepresentation
bin1101100011111…
…0001110110010
310222000200221200
43120332032302
5104030044002
65351032030
71260312036
oct330761662
9128020850
1056878002
112a119315
121706b616
13ba25c2c
1477a81c6
154ed7b1c
hex363e3b2

56878002 has 12 divisors (see below), whose sum is σ = 123235710. Its totient is φ = 18959328.

The previous prime is 56877967. The next prime is 56878007. The reversal of 56878002 is 20087865.

It can be written as a sum of positive squares in only one way, i.e., 45037521 + 11840481 = 6711^2 + 3441^2 .

It is a super-2 number, since 2×568780022 = 6470214223024008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56878007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1579927 + ... + 1579962.

Almost surely, 256878002 is an apocalyptic number.

56878002 is an abundant number, since it is smaller than the sum of its proper divisors (66357708).

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

56878002 is a wasteful number, since it uses less digits than its factorization.

56878002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3159897 (or 3159894 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 56878002 is about 7541.7505925349. The cubic root of 56878002 is about 384.5753500832.

It can be divided in two parts, 5687 and 8002, that added together give a square (13689 = 1172).

The spelling of 56878002 in words is "fifty-six million, eight hundred seventy-eight thousand, two".

Divisors: 1 2 3 6 9 18 3159889 6319778 9479667 18959334 28439001 56878002