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51393304677 = 31113119797913
BaseRepresentation
bin101111110111010001…
…111001100001100101
311220122200120101022210
4233313101321201211
51320223141222202
635335412514033
73466400611341
oct576721714145
9156580511283
1051393304677
111a8831a9520
129b6361b919
134b00615b70
1426b77bc621
15150bd65c6c
hexbf7479865

51393304677 has 16 divisors (see below), whose sum is σ = 80504198208. Its totient is φ = 28751498880.

The previous prime is 51393304657. The next prime is 51393304723. The reversal of 51393304677 is 77640339315.

It is a de Polignac number, because none of the positive numbers 2k-51393304677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51393304637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59898528 + ... + 59899385.

It is an arithmetic number, because the mean of its divisors is an integer number (5031512388).

Almost surely, 251393304677 is an apocalyptic number.

It is an amenable number.

51393304677 is a deficient number, since it is larger than the sum of its proper divisors (29110893531).

51393304677 is a wasteful number, since it uses less digits than its factorization.

51393304677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119797940.

The product of its (nonzero) digits is 1428840, while the sum is 48.

The spelling of 51393304677 in words is "fifty-one billion, three hundred ninety-three million, three hundred four thousand, six hundred seventy-seven".

Divisors: 1 3 11 13 33 39 143 429 119797913 359393739 1317777043 1557372869 3953331129 4672118607 17131101559 51393304677