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51411731052 = 22311389482811
BaseRepresentation
bin101111111000011000…
…001100001001101100
311220200222020112120010
4233320120030021230
51320242400343202
635341311453220
73500013334503
oct577030141154
9156628215503
1051411731052
111a892644530
129b69827210
134b04397c46
1426ba01783a
15150d7a576c
hexbf860c26c

51411731052 has 24 divisors (see below), whose sum is σ = 130866224832. Its totient is φ = 15579312400.

The previous prime is 51411731051. The next prime is 51411731069. The reversal of 51411731052 is 25013711415.

It is not an unprimeable number, because it can be changed into a prime (51411731051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194741274 + ... + 194741537.

It is an arithmetic number, because the mean of its divisors is an integer number (5452759368).

Almost surely, 251411731052 is an apocalyptic number.

It is an amenable number.

51411731052 is an abundant number, since it is smaller than the sum of its proper divisors (79454493780).

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

51411731052 is a wasteful number, since it uses less digits than its factorization.

51411731052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389482829 (or 389482827 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 51411731052 in words is "fifty-one billion, four hundred eleven million, seven hundred thirty-one thousand, fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 389482811 778965622 1168448433 1557931244 2336896866 4284310921 4673793732 8568621842 12852932763 17137243684 25705865526 51411731052