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56628507488 = 257318155027
BaseRepresentation
bin110100101111010100…
…100111001101100000
312102011112112020111012
4310233110213031200
51411433344214423
642003105240052
74043210241320
oct645724471540
9172145466435
1056628507488
112201a352913
12ab84933028
135456105bc7
142a52bc7280
15171677c078
hexd2f527360

56628507488 has 48 divisors (see below), whose sum is σ = 131524291584. Its totient is φ = 23486474880.

The previous prime is 56628507461. The next prime is 56628507491. The reversal of 56628507488 is 88470582665.

It is a happy number.

56628507488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 4070570 + ... + 4084457.

It is an arithmetic number, because the mean of its divisors is an integer number (2740089408).

Almost surely, 256628507488 is an apocalyptic number.

It is an amenable number.

56628507488 is an abundant number, since it is smaller than the sum of its proper divisors (74895784096).

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

56628507488 is a wasteful number, since it uses less digits than its factorization.

56628507488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155075 (or 8155067 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 59.

The spelling of 56628507488 in words is "fifty-six billion, six hundred twenty-eight million, five hundred seven thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 112 124 217 224 248 434 496 868 992 1736 3472 6944 8155027 16310054 32620108 57085189 65240216 114170378 130480432 228340756 252805837 260960864 456681512 505611674 913363024 1011223348 1769640859 1826726048 2022446696 3539281718 4044893392 7078563436 8089786784 14157126872 28314253744 56628507488