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51319075 = 5211711753
BaseRepresentation
bin1100001111000…
…1000100100011
310120120021112111
43003301010203
5101114202300
65031540151
71162130203
oct303610443
9116507474
1051319075
1126a71865
121522a657
13a82a922
146b5c403
15478a9ba
hex30f1123

51319075 has 12 divisors (see below), whose sum is σ = 63726328. Its totient is φ = 40996800.

The previous prime is 51319033. The next prime is 51319087. The reversal of 51319075 is 57091315.

It is not a de Polignac number, because 51319075 - 211 = 51317027 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 28399 + ... + 30151.

Almost surely, 251319075 is an apocalyptic number.

51319075 is a deficient number, since it is larger than the sum of its proper divisors (12407253).

51319075 is a wasteful number, since it uses less digits than its factorization.

51319075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934 (or 2929 counting only the distinct ones).

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 51319075 is about 7163.7333144109. The cubic root of 51319075 is about 371.6147469374.

The spelling of 51319075 in words is "fifty-one million, three hundred nineteen thousand, seventy-five".

Divisors: 1 5 25 1171 1753 5855 8765 29275 43825 2052763 10263815 51319075