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51192713 = 11132711321
BaseRepresentation
bin1100001101001…
…0001110001001
310120022212012102
43003102032021
5101101131323
65025123145
71161062615
oct303221611
9116285172
1051192713
1126995930
12151894b5
13a7b5260
146b28345
154763328
hex30d2389

51192713 has 16 divisors (see below), whose sum is σ = 60410112. Its totient is φ = 42768000.

The previous prime is 51192697. The next prime is 51192761. The reversal of 51192713 is 31729115.

It is not a de Polignac number, because 51192713 - 24 = 51192697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51192913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38093 + ... + 39413.

It is an arithmetic number, because the mean of its divisors is an integer number (3775632).

Almost surely, 251192713 is an apocalyptic number.

It is an amenable number.

51192713 is a deficient number, since it is larger than the sum of its proper divisors (9217399).

51192713 is a wasteful number, since it uses less digits than its factorization.

51192713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616.

The product of its digits is 1890, while the sum is 29.

The square root of 51192713 is about 7154.9083152756. The cubic root of 51192713 is about 371.3094895731.

The spelling of 51192713 in words is "fifty-one million, one hundred ninety-two thousand, seven hundred thirteen".

Divisors: 1 11 13 143 271 1321 2981 3523 14531 17173 38753 188903 357991 3937901 4653883 51192713