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130132665 = 325131811229
BaseRepresentation
bin1111100000110…
…10101010111001
3100001212102110100
413300122222321
5231303221130
620525110013
73140052345
oct760325271
9301772410
10130132665
1167502663
12376b8309
1320c63ca0
14133d6625
15b657c60
hex7c1aab9

130132665 has 48 divisors (see below), whose sum is σ = 244455120. Its totient is φ = 63659520.

The previous prime is 130132631. The next prime is 130132669. The reversal of 130132665 is 566231031.

It can be written as a sum of positive squares in 8 ways, for example, as 9308601 + 120824064 = 3051^2 + 10992^2 .

It is not a de Polignac number, because 130132665 - 27 = 130132537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130132669) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105271 + ... + 106499.

It is an arithmetic number, because the mean of its divisors is an integer number (5092815).

Almost surely, 2130132665 is an apocalyptic number.

130132665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130132665 is a deficient number, since it is larger than the sum of its proper divisors (114322455).

130132665 is a wasteful number, since it uses less digits than its factorization.

130132665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1431 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 130132665 is about 11407.5705126026. The cubic root of 130132665 is about 506.7519648539.

Adding to 130132665 its reverse (566231031), we get a palindrome (696363696).

The spelling of 130132665 in words is "one hundred thirty million, one hundred thirty-two thousand, six hundred sixty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 181 195 543 585 905 1229 1629 2353 2715 3687 6145 7059 8145 11061 11765 15977 18435 21177 35295 47931 55305 79885 105885 143793 222449 239655 667347 718965 1112245 2002041 2891837 3336735 8675511 10010205 14459185 26026533 43377555 130132665