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51697928095 = 5116229150901
BaseRepresentation
bin110000001001011011…
…111100011110011111
311221102220202212002121
4300021123330132133
51321334132144340
635425534003411
73510060065302
oct601133743637
9157386685077
1051697928095
111aa1a150610
12a029646567
134b4b7721c8
142706036b39
15152898994a
hexc096fc79f

51697928095 has 16 divisors (see below), whose sum is σ = 67688601120. Its totient is φ = 37592208000.

The previous prime is 51697928083. The next prime is 51697928119. The reversal of 51697928095 is 59082979615.

It is not a de Polignac number, because 51697928095 - 211 = 51697926047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267145 + ... + 418045.

It is an arithmetic number, because the mean of its divisors is an integer number (4230537570).

Almost surely, 251697928095 is an apocalyptic number.

51697928095 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51697928095 is a deficient number, since it is larger than the sum of its proper divisors (15990673025).

51697928095 is a wasteful number, since it uses less digits than its factorization.

51697928095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157146.

The product of its (nonzero) digits is 12247200, while the sum is 61.

The spelling of 51697928095 in words is "fifty-one billion, six hundred ninety-seven million, nine hundred twenty-eight thousand, ninety-five".

Divisors: 1 5 11 55 6229 31145 68519 150901 342595 754505 1659911 8299555 939962329 4699811645 10339585619 51697928095