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130756739 = 169976961
BaseRepresentation
bin1111100101100…
…11000010000011
3100010001010112012
413302303002003
5231433203424
620550323135
73145261661
oct762630203
9303033465
10130756739
1167899523
12379594ab
1321122069
1413519c31
15b72cb0e
hex7cb3083

130756739 has 4 divisors (see below), whose sum is σ = 130835400. Its totient is φ = 130678080.

The previous prime is 130756711. The next prime is 130756751. The reversal of 130756739 is 937657031.

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

It is a cyclic number.

It is not a de Polignac number, because 130756739 - 216 = 130691203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130756696 and 130756705.

It is not an unprimeable number, because it can be changed into a prime (130756709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36782 + ... + 40179.

It is an arithmetic number, because the mean of its divisors is an integer number (32708850).

Almost surely, 2130756739 is an apocalyptic number.

130756739 is a deficient number, since it is larger than the sum of its proper divisors (78661).

130756739 is an equidigital number, since it uses as much as digits as its factorization.

130756739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78660.

The product of its (nonzero) digits is 119070, while the sum is 41.

The square root of 130756739 is about 11434.8912981278. The cubic root of 130756739 is about 507.5607459621.

The spelling of 130756739 in words is "one hundred thirty million, seven hundred fifty-six thousand, seven hundred thirty-nine".

Divisors: 1 1699 76961 130756739