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51093761142 = 2316215253317
BaseRepresentation
bin101111100101011011…
…001110110001110110
311212212210220222211210
4233211123032301312
51314120000324032
635245552342250
73456102542514
oct574533166166
9155783828753
1051093761142
111a73a106a86
129a9b244986
134a83547a78
142689ac74b4
1514e08e72cc
hexbe56cec76

51093761142 has 16 divisors (see below), whose sum is σ = 102250581552. Its totient is φ = 17020743840.

The previous prime is 51093761119. The next prime is 51093761143. The reversal of 51093761142 is 24116739015.

It is a super-2 number, since 2×510937611422 (a number of 22 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 51093761142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51093761143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2616933 + ... + 2636384.

It is an arithmetic number, because the mean of its divisors is an integer number (6390661347).

Almost surely, 251093761142 is an apocalyptic number.

51093761142 is an abundant number, since it is smaller than the sum of its proper divisors (51156820410).

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

51093761142 is a wasteful number, since it uses less digits than its factorization.

51093761142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254943.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 51093761142 in words is "fifty-one billion, ninety-three million, seven hundred sixty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 1621 3242 4863 9726 5253317 10506634 15759951 31519902 8515626857 17031253714 25546880571 51093761142