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130807079 = 1312779229
BaseRepresentation
bin1111100101111…
…11010100100111
3100010010200120122
413302333110213
5231441311304
620551352155
73145561514
oct762772447
9303120518
10130807079
1167923327
123798265b
132113bc50
141353030b
15b73c9be
hex7cbf527

130807079 has 8 divisors (see below), whose sum is σ = 141980160. Its totient is φ = 119792736.

The previous prime is 130807067. The next prime is 130807091. The reversal of 130807079 is 970708031.

It is an interprime number because it is at equal distance from previous prime (130807067) and next prime (130807091).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130807079 - 212 = 130802983 is a prime.

It is a super-2 number, since 2×1308070792 = 34220983833024482, 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 (130807009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37964 + ... + 41265.

It is an arithmetic number, because the mean of its divisors is an integer number (17747520).

Almost surely, 2130807079 is an apocalyptic number.

130807079 is a deficient number, since it is larger than the sum of its proper divisors (11173081).

130807079 is a wasteful number, since it uses less digits than its factorization.

130807079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79369.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 130807079 is about 11437.0922440977. The cubic root of 130807079 is about 507.6258728279.

The spelling of 130807079 in words is "one hundred thirty million, eight hundred seven thousand, seventy-nine".

Divisors: 1 13 127 1651 79229 1029977 10062083 130807079