Base | Representation |
---|---|
bin | 1111100010110… |
… | …10100010110010 |
3 | 100002100201100011 |
4 | 13301122202302 |
5 | 231340104130 |
6 | 20534445134 |
7 | 3142222165 |
oct | 761324262 |
9 | 302321304 |
10 | 130394290 |
11 | 67671184 |
12 | 378037aa |
13 | 210260b0 |
14 | 13463adc |
15 | b6aa52a |
hex | 7c5a8b2 |
130394290 has 32 divisors (see below), whose sum is σ = 259605360. Its totient is φ = 46842624.
The previous prime is 130394273. The next prime is 130394293. The reversal of 130394290 is 92493031.
It can be written as a sum of positive squares in 8 ways, for example, as 47238129 + 83156161 = 6873^2 + 9119^2 .
It is not an unprimeable number, because it can be changed into a prime (130394293) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8745 + ... + 18364.
Almost surely, 2130394290 is an apocalyptic number.
130394290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130394290 is a deficient number, since it is larger than the sum of its proper divisors (129211070).
130394290 is a wasteful number, since it uses less digits than its factorization.
130394290 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27166.
The product of its (nonzero) digits is 5832, while the sum is 31.
The square root of 130394290 is about 11419.0319204388. The cubic root of 130394290 is about 507.0913370737.
The spelling of 130394290 in words is "one hundred thirty million, three hundred ninety-four thousand, two hundred ninety".
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