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130011657 = 343337219
BaseRepresentation
bin1111011111111…
…01001000001001
3100001122021110120
413233331020021
5231240333112
620522333453
73136036506
oct757751011
9301567416
10130011657
116742a756
123765a289
1320c20b99
14133a44ad
15b631e8c
hex7bfd209

130011657 has 4 divisors (see below), whose sum is σ = 173348880. Its totient is φ = 86674436.

The previous prime is 130011649. The next prime is 130011667. The reversal of 130011657 is 756110031.

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 130011657 - 23 = 130011649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130011667) 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, 21668607 + ... + 21668612.

It is an arithmetic number, because the mean of its divisors is an integer number (43337220).

Almost surely, 2130011657 is an apocalyptic number.

It is an amenable number.

130011657 is a deficient number, since it is larger than the sum of its proper divisors (43337223).

130011657 is an equidigital number, since it uses as much as digits as its factorization.

130011657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43337222.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 130011657 is about 11402.2654327989. The cubic root of 130011657 is about 506.5948429949.

Adding to 130011657 its reverse (756110031), we get a palindrome (886121688).

The spelling of 130011657 in words is "one hundred thirty million, eleven thousand, six hundred fifty-seven".

Divisors: 1 3 43337219 130011657