Base | Representation |
---|---|
bin | 1111100100110… |
… | …10010000000101 |
3 | 100002211222021212 |
4 | 13302122100011 |
5 | 231421431422 |
6 | 20544221205 |
7 | 3144360026 |
oct | 762322005 |
9 | 302758255 |
10 | 130655237 |
11 | 6782a239 |
12 | 3790a805 |
13 | 210b7abb |
14 | 134d0c4d |
15 | b70c9e2 |
hex | 7c9a405 |
130655237 has 12 divisors (see below), whose sum is σ = 136011876. Its totient is φ = 125502720.
The previous prime is 130655221. The next prime is 130655257. The reversal of 130655237 is 732556031.
It can be written as a sum of positive squares in 6 ways, for example, as 4519876 + 126135361 = 2126^2 + 11231^2 .
It is not a de Polignac number, because 130655237 - 24 = 130655221 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130655257) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 283187 + ... + 283647.
It is an arithmetic number, because the mean of its divisors is an integer number (11334323).
Almost surely, 2130655237 is an apocalyptic number.
It is an amenable number.
130655237 is a deficient number, since it is larger than the sum of its proper divisors (5356639).
130655237 is an equidigital number, since it uses as much as digits as its factorization.
130655237 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 856 (or 827 counting only the distinct ones).
The product of its (nonzero) digits is 18900, while the sum is 32.
The square root of 130655237 is about 11430.4521782824. The cubic root of 130655237 is about 507.4293779280.
The spelling of 130655237 in words is "one hundred thirty million, six hundred fifty-five thousand, two hundred thirty-seven".
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