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130536231 = 376216011
BaseRepresentation
bin1111100011111…
…01001100100111
3100002121221001020
413301331030213
5231404124411
620541502223
73143353050
oct761751447
9302557036
10130536231
1167758891
1237871973
1321075897
141349d727
15b6d7606
hex7c7d327

130536231 has 8 divisors (see below), whose sum is σ = 198912384. Its totient is φ = 74592120.

The previous prime is 130536229. The next prime is 130536233. The reversal of 130536231 is 132635031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130536229) and next prime (130536233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130536231 - 21 = 130536229 is a prime.

It is a super-2 number, since 2×1305362312 = 34079415207370722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130536233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3107985 + ... + 3108026.

It is an arithmetic number, because the mean of its divisors is an integer number (24864048).

Almost surely, 2130536231 is an apocalyptic number.

130536231 is a deficient number, since it is larger than the sum of its proper divisors (68376153).

130536231 is an equidigital number, since it uses as much as digits as its factorization.

130536231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216021.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 130536231 is about 11425.2453365344. The cubic root of 130536231 is about 507.2752688249.

The spelling of 130536231 in words is "one hundred thirty million, five hundred thirty-six thousand, two hundred thirty-one".

Divisors: 1 3 7 21 6216011 18648033 43512077 130536231