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51093817076 = 2214985727881
BaseRepresentation
bin101111100101011011…
…011100011011110100
311212212211000211120102
4233211123130123310
51314120004121301
635245553453232
73456103164551
oct574533343364
9155784024512
1051093817076
111a73a145005
129a9b271218
134a83567373
142689adda28
1514e0908b6b
hexbe56dc6f4

51093817076 has 12 divisors (see below), whose sum is σ = 90014276100. Its totient is φ = 25375452480.

The previous prime is 51093817039. The next prime is 51093817087. The reversal of 51093817076 is 67071839015.

It can be written as a sum of positive squares in 2 ways, for example, as 23862216676 + 27231600400 = 154474^2 + 165020^2 .

It is a super-2 number, since 2×510938170762 (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 51093817076.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42863345 + ... + 42864536.

It is an arithmetic number, because the mean of its divisors is an integer number (7501189675).

Almost surely, 251093817076 is an apocalyptic number.

It is an amenable number.

51093817076 is a deficient number, since it is larger than the sum of its proper divisors (38920459024).

51093817076 is a wasteful number, since it uses less digits than its factorization.

51093817076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85728034 (or 85728032 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The spelling of 51093817076 in words is "fifty-one billion, ninety-three million, eight hundred seventeen thousand, seventy-six".

Divisors: 1 2 4 149 298 596 85727881 171455762 342911524 12773454269 25546908538 51093817076