Base | Representation |
---|---|
bin | 1111100011100… |
… | …10010000010000 |
3 | 100002112122120010 |
4 | 13301302100100 |
5 | 231401211113 |
6 | 20540514520 |
7 | 3143105265 |
oct | 761622020 |
9 | 302478503 |
10 | 130491408 |
11 | 67728143 |
12 | 3784ba40 |
13 | 2105b368 |
14 | 1348b26c |
15 | b6c91c3 |
hex | 7c72410 |
130491408 has 20 divisors (see below), whose sum is σ = 337102928. Its totient is φ = 43497120.
The previous prime is 130491401. The next prime is 130491419. The reversal of 130491408 is 804194031.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (130491401) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359238 + ... + 1359333.
Almost surely, 2130491408 is an apocalyptic number.
It is an amenable number.
130491408 is an abundant number, since it is smaller than the sum of its proper divisors (206611520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130491408 is a wasteful number, since it uses less digits than its factorization.
130491408 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2718582 (or 2718576 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 130491408 is about 11423.2835909821. The cubic root of 130491408 is about 507.2172001385.
The spelling of 130491408 in words is "one hundred thirty million, four hundred ninety-one thousand, four hundred eight".
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