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56703764231 = 173335515543
BaseRepresentation
bin110100110011110011…
…101100011100000111
312102100210010200022222
4310303303230130013
51412112130423411
642014354242555
74045113020612
oct646363543407
9172323120288
1056703764231
1122058884374
12aba5b8645b
13546889531a
142a5cbb7179
15171d1954db
hexd33cec707

56703764231 has 4 divisors (see below), whose sum is σ = 60039279792. Its totient is φ = 53368248672.

The previous prime is 56703764207. The next prime is 56703764237. The reversal of 56703764231 is 13246730765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13246730765 = 52649346153.

It is a cyclic number.

It is not a de Polignac number, because 56703764231 - 218 = 56703502087 is a prime.

It is a super-2 number, since 2×567037642312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56703764237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667757755 + ... + 1667757788.

It is an arithmetic number, because the mean of its divisors is an integer number (15009819948).

Almost surely, 256703764231 is an apocalyptic number.

56703764231 is a deficient number, since it is larger than the sum of its proper divisors (3335515561).

56703764231 is a wasteful number, since it uses less digits than its factorization.

56703764231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335515560.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 56703764231 in words is "fifty-six billion, seven hundred three million, seven hundred sixty-four thousand, two hundred thirty-one".

Divisors: 1 17 3335515543 56703764231