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130187165 = 526037433
BaseRepresentation
bin1111100001001…
…11111110011101
3100001222012012212
413300213332131
5231311442130
620530210205
73140400263
oct760477635
9301865185
10130187165
116753a5a9
1237723965
1320c82a34
141340c433
15b668e95
hex7c27f9d

130187165 has 4 divisors (see below), whose sum is σ = 156224604. Its totient is φ = 104149728.

The previous prime is 130187149. The next prime is 130187179. The reversal of 130187165 is 561781031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32137561 + 98049604 = 5669^2 + 9902^2 .

It is a cyclic number.

It is not a de Polignac number, because 130187165 - 24 = 130187149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13018712 + ... + 13018721.

It is an arithmetic number, because the mean of its divisors is an integer number (39056151).

Almost surely, 2130187165 is an apocalyptic number.

It is an amenable number.

130187165 is a deficient number, since it is larger than the sum of its proper divisors (26037439).

130187165 is an equidigital number, since it uses as much as digits as its factorization.

130187165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26037438.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 130187165 is about 11409.9590270956. The cubic root of 130187165 is about 506.8226981256.

The spelling of 130187165 in words is "one hundred thirty million, one hundred eighty-seven thousand, one hundred sixty-five".

Divisors: 1 5 26037433 130187165