Base | Representation |
---|---|
bin | 1111100110011… |
… | …00101000101100 |
3 | 100010020110101101 |
4 | 13303030220230 |
5 | 232000032422 |
6 | 20552452444 |
7 | 3146206510 |
oct | 763145054 |
9 | 303213341 |
10 | 130861612 |
11 | 679602a2 |
12 | 379aa124 |
13 | 2115aa0b |
14 | 13546140 |
15 | b74dc27 |
hex | 7ccca2c |
130861612 has 12 divisors (see below), whose sum is σ = 261723280. Its totient is φ = 56083536.
The previous prime is 130861609. The next prime is 130861639. The reversal of 130861612 is 216168031.
130861612 is an admirable number.
It is a super-2 number, since 2×1308616122 = 34249522990477088, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 4673629 = 130861612 / (1 + 3 + 0 + 8 + 6 + 1 + 6 + 1 + 2).
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336787 + ... + 2336842.
Almost surely, 2130861612 is an apocalyptic number.
It is an amenable number.
130861612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130861612 is a wasteful number, since it uses less digits than its factorization.
130861612 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4673640 (or 4673638 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 28.
The square root of 130861612 is about 11439.4760369520. The cubic root of 130861612 is about 507.6964054930.
The spelling of 130861612 in words is "one hundred thirty million, eight hundred sixty-one thousand, six hundred twelve".
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