Base | Representation |
---|---|
bin | 1111100010110… |
… | …10001100111010 |
3 | 100002100122102022 |
4 | 13301122030322 |
5 | 231340033030 |
6 | 20534434442 |
7 | 3142215125 |
oct | 761321472 |
9 | 302318368 |
10 | 130392890 |
11 | 67670121 |
12 | 37802a22 |
13 | 21025574 |
14 | 134633bc |
15 | b6a9de5 |
hex | 7c5a33a |
130392890 has 16 divisors (see below), whose sum is σ = 248513832. Its totient is φ = 49089024.
The previous prime is 130392887. The next prime is 130392937. The reversal of 130392890 is 98293031.
It can be written as a sum of positive squares in 4 ways, for example, as 123854641 + 6538249 = 11129^2 + 2557^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 130392890.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383339 + ... + 383678.
Almost surely, 2130392890 is an apocalyptic number.
130392890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130392890 is a deficient number, since it is larger than the sum of its proper divisors (118120942).
130392890 is a wasteful number, since it uses less digits than its factorization.
130392890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 767041.
The product of its (nonzero) digits is 11664, while the sum is 35.
The square root of 130392890 is about 11418.9706191057. The cubic root of 130392890 is about 507.0895222437.
The spelling of 130392890 in words is "one hundred thirty million, three hundred ninety-two thousand, eight hundred ninety".
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