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130807517 = 671952351
BaseRepresentation
bin1111100101111…
…11011011011101
3100010010201011212
413302333123131
5231441320032
620551354205
73145563011
oct762773335
9303121155
10130807517
1167923695
1237982965
132113c1c9
1413530541
15b73cbb2
hex7cbf6dd

130807517 has 4 divisors (see below), whose sum is σ = 132759936. Its totient is φ = 128855100.

The previous prime is 130807511. The next prime is 130807519. The reversal of 130807517 is 715708031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130807517 - 222 = 126613213 is a prime.

It is a super-2 number, since 2×1308075172 = 34221213007410578, 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 (130807511) 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, 976109 + ... + 976242.

It is an arithmetic number, because the mean of its divisors is an integer number (33189984).

Almost surely, 2130807517 is an apocalyptic number.

It is an amenable number.

130807517 is a deficient number, since it is larger than the sum of its proper divisors (1952419).

130807517 is an equidigital number, since it uses as much as digits as its factorization.

130807517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952418.

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

The square root of 130807517 is about 11437.1113923053. Note that the first 3 decimals coincide. The cubic root of 130807517 is about 507.6264394126.

The spelling of 130807517 in words is "one hundred thirty million, eight hundred seven thousand, five hundred seventeen".

Divisors: 1 67 1952351 130807517