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51100475901 = 3179106989017
BaseRepresentation
bin101111100101110100…
…110110000111111101
311212220021120010202120
4233211310312013331
51314123210212101
635250352313153
73456213610206
oct574564660775
9155807503676
1051100475901
111a742982972
129aa15427b9
134a84a591b7
14268a9545ad
1514e12c1b36
hexbe5d361fd

51100475901 has 16 divisors (see below), whose sum is σ = 68579467200. Its totient is φ = 33844595328.

The previous prime is 51100475869. The next prime is 51100475903. The reversal of 51100475901 is 10957400115.

It is not a de Polignac number, because 51100475901 - 25 = 51100475869 is a prime.

It is a super-2 number, since 2×511004759012 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100475903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529545 + ... + 618561.

It is an arithmetic number, because the mean of its divisors is an integer number (4286216700).

Almost surely, 251100475901 is an apocalyptic number.

It is an amenable number.

51100475901 is a deficient number, since it is larger than the sum of its proper divisors (17478991299).

51100475901 is a wasteful number, since it uses less digits than its factorization.

51100475901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90268.

The product of its (nonzero) digits is 6300, while the sum is 33.

The spelling of 51100475901 in words is "fifty-one billion, one hundred million, four hundred seventy-five thousand, nine hundred one".

Divisors: 1 3 179 537 1069 3207 89017 191351 267051 574053 15934043 47802129 95159173 285477519 17033491967 51100475901