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51071134911 = 3192903308641
BaseRepresentation
bin101111100100000100…
…111010110010111111
311212211020100110111020
4233210010322302333
51314043202304121
635243423355223
73455406325026
oct574404726277
9155736313436
1051071134911
111a728362615
129a93752b13
134a7b955174
142686ab78bd
1514dd9281c6
hexbe413acbf

51071134911 has 16 divisors (see below), whose sum is σ = 71703709440. Its totient is φ = 32244238080.

The previous prime is 51071134909. The next prime is 51071134969. The reversal of 51071134911 is 11943117015.

It is not a de Polignac number, because 51071134911 - 21 = 51071134909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51071134991) 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, 11151 + ... + 319791.

It is an arithmetic number, because the mean of its divisors is an integer number (4481481840).

Almost surely, 251071134911 is an apocalyptic number.

51071134911 is a deficient number, since it is larger than the sum of its proper divisors (20632574529).

51071134911 is a wasteful number, since it uses less digits than its factorization.

51071134911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311566.

The product of its (nonzero) digits is 3780, while the sum is 33.

The spelling of 51071134911 in words is "fifty-one billion, seventy-one million, one hundred thirty-four thousand, nine hundred eleven".

Divisors: 1 3 19 57 2903 8709 55157 165471 308641 925923 5864179 17592537 895984823 2687954469 17023711637 51071134911