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52690388568 = 2332195432857
BaseRepresentation
bin110001000100100101…
…111000011001011000
312001000002021001220220
4301010211320121120
51330402214413233
640112225520040
73543500625126
oct610445703130
9161002231826
1052690388568
1120389394884
12a265aa3020
134c7926c71c
14279bb80916
151585b7beb3
hexc44978658

52690388568 has 16 divisors (see below), whose sum is σ = 131725971480. Its totient is φ = 17563462848.

The previous prime is 52690388567. The next prime is 52690388573. The reversal of 52690388568 is 86588309625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52690388561) 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, 1097716405 + ... + 1097716452.

Almost surely, 252690388568 is an apocalyptic number.

It is an amenable number.

52690388568 is an abundant number, since it is smaller than the sum of its proper divisors (79035582912).

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

52690388568 is a wasteful number, since it uses less digits than its factorization.

52690388568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195432866 (or 2195432862 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 52690388568 in words is "fifty-two billion, six hundred ninety million, three hundred eighty-eight thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 2195432857 4390865714 6586298571 8781731428 13172597142 17563462856 26345194284 52690388568