Base | Representation |
---|---|
bin | 1111100110110… |
… | …00001100101111 |
3 | 100010022212100120 |
4 | 13303120030233 |
5 | 232003041400 |
6 | 20553500023 |
7 | 3146464551 |
oct | 763301457 |
9 | 303285316 |
10 | 130908975 |
11 | 6799293a |
12 | 37a11613 |
13 | 21176442 |
14 | 135594d1 |
15 | b75cca0 |
hex | 7cd832f |
130908975 has 12 divisors (see below), whose sum is σ = 216436296. Its totient is φ = 69818080.
The previous prime is 130908971. The next prime is 130908979. The reversal of 130908975 is 579809031.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (130908971) and next prime (130908979).
It is not a de Polignac number, because 130908975 - 22 = 130908971 is a prime.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130908971) 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, 872652 + ... + 872801.
It is an arithmetic number, because the mean of its divisors is an integer number (18036358).
Almost surely, 2130908975 is an apocalyptic number.
130908975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
130908975 is a deficient number, since it is larger than the sum of its proper divisors (85527321).
130908975 is a wasteful number, since it uses less digits than its factorization.
130908975 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1745466 (or 1745461 counting only the distinct ones).
The product of its (nonzero) digits is 68040, while the sum is 42.
The square root of 130908975 is about 11441.5460056760. The cubic root of 130908975 is about 507.7576486238.
The spelling of 130908975 in words is "one hundred thirty million, nine hundred eight thousand, nine hundred seventy-five".
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