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51159053992160 = 255319744087451
BaseRepresentation
bin10111010000111011001010…
…01111011000000011100000
320201010202110102201122211102
423220131211033120003200
523201142220310222120
6300450051150533532
713530056022665042
oct1350354517300340
9221122412648742
1051159053992160
11153344842a0484
1258a2b738072a8
13227137cc7377a
14c8c17ba6da92
155dab6ec99d75
hex2e87653d80e0

51159053992160 has 24 divisors (see below), whose sum is σ = 120863265056856. Its totient is φ = 20463621596800.

The previous prime is 51159053992129. The next prime is 51159053992169. The reversal of 51159053992160 is 6129935095115.

It is a junction number, because it is equal to n+sod(n) for n = 51159053992096 and 51159053992105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51159053992169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159872043566 + ... + 159872043885.

It is an arithmetic number, because the mean of its divisors is an integer number (5035969377369).

Almost surely, 251159053992160 is an apocalyptic number.

It is an amenable number.

51159053992160 is an abundant number, since it is smaller than the sum of its proper divisors (69704211064696).

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

51159053992160 is a wasteful number, since it uses less digits than its factorization.

51159053992160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319744087466 (or 319744087458 counting only the distinct ones).

The product of its (nonzero) digits is 3280500, while the sum is 56.

The spelling of 51159053992160 in words is "fifty-one trillion, one hundred fifty-nine billion, fifty-three million, nine hundred ninety-two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 319744087451 639488174902 1278976349804 1598720437255 2557952699608 3197440874510 5115905399216 6394881749020 10231810798432 12789763498040 25579526996080 51159053992160