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130132231 = 773168347
BaseRepresentation
bin1111100000110…
…10100100000111
3100001212101212021
413300122210013
5231303212411
620525104011
73140051155
oct760324407
9301771767
10130132231
11675022a9
12376b8007
1320c63a28
14133d63d5
15b657a71
hex7c1a907

130132231 has 4 divisors (see below), whose sum is σ = 130301352. Its totient is φ = 129963112.

The previous prime is 130132199. The next prime is 130132243. The reversal of 130132231 is 132231031.

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

It is a cyclic number.

It is not a de Polignac number, because 130132231 - 25 = 130132199 is a prime.

It is a super-2 number, since 2×1301322312 = 33868795090074722, 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 (130132271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83401 + ... + 84946.

It is an arithmetic number, because the mean of its divisors is an integer number (32575338).

Almost surely, 2130132231 is an apocalyptic number.

130132231 is a deficient number, since it is larger than the sum of its proper divisors (169121).

130132231 is an equidigital number, since it uses as much as digits as its factorization.

130132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169120.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130132231 is about 11407.5514901314. The cubic root of 130132231 is about 506.7514015041.

Adding to 130132231 its reverse (132231031), we get a palindrome (262363262).

The spelling of 130132231 in words is "one hundred thirty million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 773 168347 130132231