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130708751 = 1031269017
BaseRepresentation
bin1111100101001…
…11010100001111
3100002221200200212
413302213110033
5231430140001
620545313035
73145002035
oct762472417
9302850625
10130708751
1167866468
123793577b
1321106274
1413506555
15b71d7bb
hex7ca750f

130708751 has 4 divisors (see below), whose sum is σ = 131977872. Its totient is φ = 129439632.

The previous prime is 130708727. The next prime is 130708769. The reversal of 130708751 is 157807031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130708751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130708651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634406 + ... + 634611.

It is an arithmetic number, because the mean of its divisors is an integer number (32994468).

Almost surely, 2130708751 is an apocalyptic number.

130708751 is a deficient number, since it is larger than the sum of its proper divisors (1269121).

130708751 is a wasteful number, since it uses less digits than its factorization.

130708751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269120.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 130708751 is about 11432.7927909151. The cubic root of 130708751 is about 507.4986464086.

The spelling of 130708751 in words is "one hundred thirty million, seven hundred eight thousand, seven hundred fifty-one".

Divisors: 1 103 1269017 130708751