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130135207 = 1131151639
BaseRepresentation
bin1111100000110…
…11010010100111
3100001212112221111
413300123102213
5231303311312
620525125451
73140062636
oct760332247
9301775844
10130135207
1167504564
12376b9887
1320c651a7
14133d751d
15b6588a7
hex7c1b4a7

130135207 has 4 divisors (see below), whose sum is σ = 131286960. Its totient is φ = 128983456.

The previous prime is 130135183. The next prime is 130135231. The reversal of 130135207 is 702531031.

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

It is an interprime number because it is at equal distance from previous prime (130135183) and next prime (130135231).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130135207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130135277) 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, 575707 + ... + 575932.

It is an arithmetic number, because the mean of its divisors is an integer number (32821740).

Almost surely, 2130135207 is an apocalyptic number.

130135207 is a deficient number, since it is larger than the sum of its proper divisors (1151753).

130135207 is a wasteful number, since it uses less digits than its factorization.

130135207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151752.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 130135207 is about 11407.6819292966. The cubic root of 130135207 is about 506.7552644484.

Adding to 130135207 its reverse (702531031), we get a palindrome (832666238).

The spelling of 130135207 in words is "one hundred thirty million, one hundred thirty-five thousand, two hundred seven".

Divisors: 1 113 1151639 130135207