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130139989 = 7374791049
BaseRepresentation
bin1111100000111…
…00011101010101
3100001212210111121
413300130131111
5231303434424
620525203541
73140112610
oct760343525
9301783447
10130139989
1167508111
12377005b1
1320c67415
14133d9177
15b659ee4
hex7c1c755

130139989 has 16 divisors (see below), whose sum is σ = 153216000. Its totient is φ = 108203904.

The previous prime is 130139923. The next prime is 130139993. The reversal of 130139989 is 989931031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130139989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130139909) 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, 123537 + ... + 124585.

It is an arithmetic number, because the mean of its divisors is an integer number (9576000).

Almost surely, 2130139989 is an apocalyptic number.

It is an amenable number.

130139989 is a deficient number, since it is larger than the sum of its proper divisors (23076011).

130139989 is a wasteful number, since it uses less digits than its factorization.

130139989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 130139989 is about 11407.8915229765. The cubic root of 130139989 is about 506.7614715158.

The spelling of 130139989 in words is "one hundred thirty million, one hundred thirty-nine thousand, nine hundred eighty-nine".

Divisors: 1 7 37 259 479 1049 3353 7343 17723 38813 124061 271691 502471 3517297 18591427 130139989