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5257808954892 = 22331347717315373
BaseRepresentation
bin100110010000010110111…
…0101011100011000001100
3200121122022202010222211000
41030200231311130120030
51142120443043024032
615103223141100300
71051602256502214
oct114405565343014
920548282128730
105257808954892
1117479080a213a
1270abb96b7690
132c1a69c25c10
1414269d331244
1591b7ad99e7c
hex4c82dd5c60c

5257808954892 has 384 divisors, whose sum is σ = 15412688363520. Its totient is φ = 1539580815360.

The previous prime is 5257808954863. The next prime is 5257808954941. The reversal of 5257808954892 is 2984598087525.

5257808954892 is a `hidden beast` number, since 5 + 2 + 5 + 78 + 0 + 8 + 9 + 548 + 9 + 2 = 666.

It is a super-2 number, since 2×52578089548922 (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5257808954892.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 342008118 + ... + 342023490.

It is an arithmetic number, because the mean of its divisors is an integer number (40137209280).

Almost surely, 25257808954892 is an apocalyptic number.

5257808954892 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5257808954892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7706344181760).

5257808954892 is an abundant number, since it is smaller than the sum of its proper divisors (10154879408628).

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

5257808954892 is a wasteful number, since it uses less digits than its factorization.

5257808954892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15590 (or 15582 counting only the distinct ones).

The product of its (nonzero) digits is 580608000, while the sum is 72.

The spelling of 5257808954892 in words is "five trillion, two hundred fifty-seven billion, eight hundred eight million, nine hundred fifty-four thousand, eight hundred ninety-two".