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56816351140 = 2257338915309
BaseRepresentation
bin110100111010100001…
…001011011110100100
312102122121222200112111
4310322201023132210
51412324441214030
642033455330404
74050651005413
oct647241133644
9172577880474
1056816351140
11221063925aa
12b017820a04
135485cc4cb3
142a6db2347a
151727ed462a
hexd3a84b7a4

56816351140 has 24 divisors (see below), whose sum is σ = 120948783480. Its totient is φ = 22415217408.

The previous prime is 56816351129. The next prime is 56816351143. The reversal of 56816351140 is 4115361865.

56816351140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2980286464 + 53836064676 = 54592^2 + 232026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56816351093 and 56816351102.

It is not an unprimeable number, because it can be changed into a prime (56816351143) 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, 19456195 + ... + 19459114.

It is an arithmetic number, because the mean of its divisors is an integer number (5039532645).

Almost surely, 256816351140 is an apocalyptic number.

It is an amenable number.

56816351140 is an abundant number, since it is smaller than the sum of its proper divisors (64132432340).

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

56816351140 is a wasteful number, since it uses less digits than its factorization.

56816351140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38915391 (or 38915389 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 56816351140 in words is "fifty-six billion, eight hundred sixteen million, three hundred fifty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 38915309 77830618 155661236 194576545 389153090 778306180 2840817557 5681635114 11363270228 14204087785 28408175570 56816351140