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130052031 = 343350677
BaseRepresentation
bin1111100000001…
…10111110111111
3100001201022211220
413300012332333
5231243131111
620523244423
73136265304
oct760067677
9301638756
10130052031
116745801a
1237679713
1320c36385
14133b50ab
15b63de06
hex7c06fbf

130052031 has 4 divisors (see below), whose sum is σ = 173402712. Its totient is φ = 86701352.

The previous prime is 130052029. The next prime is 130052033. The reversal of 130052031 is 130250031.

It is a happy number.

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 (130052029) and next prime (130052033).

It is a cyclic number.

It is not a de Polignac number, because 130052031 - 21 = 130052029 is a prime.

It is a super-2 number, since 2×1300520312 = 33827061534449922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130052031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130052033) 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, 21675336 + ... + 21675341.

It is an arithmetic number, because the mean of its divisors is an integer number (43350678).

Almost surely, 2130052031 is an apocalyptic number.

130052031 is a deficient number, since it is larger than the sum of its proper divisors (43350681).

130052031 is an equidigital number, since it uses as much as digits as its factorization.

130052031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43350680.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 130052031 is about 11404.0357330201. The cubic root of 130052031 is about 506.6472771223.

The spelling of 130052031 in words is "one hundred thirty million, fifty-two thousand, thirty-one".

Divisors: 1 3 43350677 130052031