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130756757 is a prime number
BaseRepresentation
bin1111100101100…
…11000010010101
3100010001010112212
413302303002111
5231433204012
620550323205
73145262015
oct762630225
9303033485
10130756757
116789953a
1237959505
1321122081
1413519c45
15b72cb22
hex7cb3095

130756757 has 2 divisors, whose sum is σ = 130756758. Its totient is φ = 130756756.

The previous prime is 130756751. The next prime is 130756781. The reversal of 130756757 is 757657031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113401201 + 17355556 = 10649^2 + 4166^2 .

It is a cyclic number.

It is not a de Polignac number, because 130756757 - 218 = 130494613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130756751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65378378 + 65378379.

It is an arithmetic number, because the mean of its divisors is an integer number (65378379).

Almost surely, 2130756757 is an apocalyptic number.

It is an amenable number.

130756757 is a deficient number, since it is larger than the sum of its proper divisors (1).

130756757 is an equidigital number, since it uses as much as digits as its factorization.

130756757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154350, while the sum is 41.

The square root of 130756757 is about 11434.8920851926. The cubic root of 130756757 is about 507.5607692525.

The spelling of 130756757 in words is "one hundred thirty million, seven hundred fifty-six thousand, seven hundred fifty-seven".