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130231295 = 5163159793
BaseRepresentation
bin1111100001100…
…10101111111111
3100002001102202022
413300302233333
5231314400140
620531150355
73140643035
oct760625777
9302042668
10130231295
116756a777
12377453bb
1320c99b4c
1413420555
15b6770b5
hex7c32bff

130231295 has 8 divisors (see below), whose sum is σ = 157237296. Its totient is φ = 103545216.

The previous prime is 130231289. The next prime is 130231307. The reversal of 130231295 is 592132031.

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 130231295 - 28 = 130231039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79082 + ... + 80711.

It is an arithmetic number, because the mean of its divisors is an integer number (19654662).

Almost surely, 2130231295 is an apocalyptic number.

130231295 is a deficient number, since it is larger than the sum of its proper divisors (27006001).

130231295 is a wasteful number, since it uses less digits than its factorization.

130231295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159961.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 130231295 is about 11411.8927001615. The cubic root of 130231295 is about 506.8799581455.

The spelling of 130231295 in words is "one hundred thirty million, two hundred thirty-one thousand, two hundred ninety-five".

Divisors: 1 5 163 815 159793 798965 26046259 130231295