Base | Representation |
---|---|
bin | 1111100000110… |
… | …10101010111001 |
3 | 100001212102110100 |
4 | 13300122222321 |
5 | 231303221130 |
6 | 20525110013 |
7 | 3140052345 |
oct | 760325271 |
9 | 301772410 |
10 | 130132665 |
11 | 67502663 |
12 | 376b8309 |
13 | 20c63ca0 |
14 | 133d6625 |
15 | b657c60 |
hex | 7c1aab9 |
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".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •