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130867989 = 37171033559
BaseRepresentation
bin1111100110011…
…10001100010101
3100010020210010120
413303032030111
5232000233424
620552542153
73146234220
oct763161425
9303223116
10130867989
116796506a
12379b1959
13211608a5
14135485b7
15b750a79
hex7cce315

130867989 has 32 divisors (see below), whose sum is σ = 213258240. Its totient is φ = 69679872.

The previous prime is 130867987. The next prime is 130867993. The reversal of 130867989 is 989768031.

It is not a de Polignac number, because 130867989 - 21 = 130867987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130867987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34992 + ... + 38550.

It is an arithmetic number, because the mean of its divisors is an integer number (6664320).

Almost surely, 2130867989 is an apocalyptic number.

It is an amenable number.

130867989 is a deficient number, since it is larger than the sum of its proper divisors (82390251).

130867989 is a wasteful number, since it uses less digits than its factorization.

130867989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689.

The product of its (nonzero) digits is 653184, while the sum is 51.

The square root of 130867989 is about 11439.7547613574. The cubic root of 130867989 is about 507.7046521880.

The spelling of 130867989 in words is "one hundred thirty million, eight hundred sixty-seven thousand, nine hundred eighty-nine".

Divisors: 1 3 7 17 21 51 103 119 309 357 721 1751 2163 3559 5253 10677 12257 24913 36771 60503 74739 181509 366577 423521 1099731 1270563 2566039 6231809 7698117 18695427 43622663 130867989