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51095713 = 8327417
BaseRepresentation
bin1100001011101…
…0100010100001
310120010221010211
43002322202201
5101040030323
65023054121
71160210044
oct302724241
9116127124
1051095713
1126929a69
1215141341
13a780066
146b00c5b
15474470d
hex30ba8a1

51095713 has 6 divisors (see below), whose sum is σ = 51725714. Its totient is φ = 50473296.

The previous prime is 51095689. The next prime is 51095749. The reversal of 51095713 is 31759015.

It can be written as a sum of positive squares in only one way, i.e., 48608784 + 2486929 = 6972^2 + 1577^2 .

It is not a de Polignac number, because 51095713 - 29 = 51095201 is a prime.

It is a super-2 number, since 2×510957132 = 5221543773956738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51095753) 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 5 ways as a sum of consecutive naturals, for example, 3181 + ... + 10597.

Almost surely, 251095713 is an apocalyptic number.

It is an amenable number.

51095713 is a deficient number, since it is larger than the sum of its proper divisors (630001).

51095713 is an frugal number, since it uses more digits than its factorization.

51095713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7583 (or 7500 counting only the distinct ones).

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

The square root of 51095713 is about 7148.1265377720. The cubic root of 51095713 is about 371.0748221063.

The spelling of 51095713 in words is "fifty-one million, ninety-five thousand, seven hundred thirteen".

Divisors: 1 83 6889 7417 615611 51095713