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52687488957 = 3103170509673
BaseRepresentation
bin110001000100011010…
…110100011110111101
312000222212210202101220
4301010122310132331
51330400444121312
640112043423553
73543434160345
oct610432643675
9160885722356
1052687488957
1120387794304
12a264b24bb9
134c7879598c
14279b627d25
1515857a7c8c
hexc446b47bd

52687488957 has 8 divisors (see below), whose sum is σ = 70932024384. Its totient is φ = 34783973088.

The previous prime is 52687488923. The next prime is 52687488967. The reversal of 52687488957 is 75988478625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52687488957 - 27 = 52687488829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52687488891 and 52687488900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52687488967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85254528 + ... + 85255145.

It is an arithmetic number, because the mean of its divisors is an integer number (8866503048).

Almost surely, 252687488957 is an apocalyptic number.

It is an amenable number.

52687488957 is a deficient number, since it is larger than the sum of its proper divisors (18244535427).

52687488957 is a wasteful number, since it uses less digits than its factorization.

52687488957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170509779.

The product of its digits is 270950400, while the sum is 69.

The spelling of 52687488957 in words is "fifty-two billion, six hundred eighty-seven million, four hundred eighty-eight thousand, nine hundred fifty-seven".

Divisors: 1 3 103 309 170509673 511529019 17562496319 52687488957