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51641671054 = 2439415714149
BaseRepresentation
bin110000000110000101…
…010101110110001110
311221021222220200221111
4300012011111312032
51321230231433204
635420204122234
73505504650511
oct600605256616
9157258820844
1051641671054
111a9a0416896
12a01283637a
134b3cc05b0c
1426dc790d78
151523a75d04
hexc06155d8e

51641671054 has 16 divisors (see below), whose sum is σ = 77663124000. Its totient is φ = 25754000544.

The previous prime is 51641671027. The next prime is 51641671057. The reversal of 51641671054 is 45017614615.

It is a junction number, because it is equal to n+sod(n) for n = 51641670998 and 51641671016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51641671057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3642772 + ... + 3656920.

It is an arithmetic number, because the mean of its divisors is an integer number (4853945250).

Almost surely, 251641671054 is an apocalyptic number.

51641671054 is a deficient number, since it is larger than the sum of its proper divisors (26021452946).

51641671054 is a wasteful number, since it uses less digits than its factorization.

51641671054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18747.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 51641671054 in words is "fifty-one billion, six hundred forty-one million, six hundred seventy-one thousand, fifty-four".

Divisors: 1 2 439 878 4157 8314 14149 28298 1824923 3649846 6211411 12422822 58817393 117634786 25820835527 51641671054