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130133487 = 31117231967
BaseRepresentation
bin1111100000110…
…10110111101111
3100001212110120210
413300122313233
5231303232422
620525113503
73140054631
oct760326757
9301773523
10130133487
1167503240
12376b8893
1320c64483
14133d6a51
15b65810c
hex7c1adef

130133487 has 16 divisors (see below), whose sum is σ = 200420352. Its totient is φ = 74229120.

The previous prime is 130133483. The next prime is 130133491. The reversal of 130133487 is 784331031.

It is an interprime number because it is at equal distance from previous prime (130133483) and next prime (130133491).

It is not a de Polignac number, because 130133487 - 22 = 130133483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130133483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115423 + ... + 116544.

It is an arithmetic number, because the mean of its divisors is an integer number (12526272).

Almost surely, 2130133487 is an apocalyptic number.

130133487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

130133487 is a deficient number, since it is larger than the sum of its proper divisors (70286865).

130133487 is a wasteful number, since it uses less digits than its factorization.

130133487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231998.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 130133487 is about 11407.6065412513. The cubic root of 130133487 is about 506.7530318400.

The spelling of 130133487 in words is "one hundred thirty million, one hundred thirty-three thousand, four hundred eighty-seven".

Divisors: 1 3 11 17 33 51 187 561 231967 695901 2551637 3943439 7654911 11830317 43377829 130133487