Base | Representation |
---|---|
bin | 1111100110001… |
… | …10011110100011 |
3 | 100010012011210010 |
4 | 13303012132203 |
5 | 231443231022 |
6 | 20552140003 |
7 | 3146043123 |
oct | 763063643 |
9 | 303164703 |
10 | 130836387 |
11 | 67943350 |
12 | 37997603 |
13 | 2114c3a6 |
14 | 1353ac83 |
15 | b74650c |
hex | 7cc67a3 |
130836387 has 16 divisors (see below), whose sum is σ = 191060352. Its totient is φ = 78981120.
The previous prime is 130836379. The next prime is 130836427. The reversal of 130836387 is 783638031.
It is not a de Polignac number, because 130836387 - 23 = 130836379 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130836347) 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, 768 + ... + 16194.
It is an arithmetic number, because the mean of its divisors is an integer number (11941272).
Almost surely, 2130836387 is an apocalyptic number.
130836387 is a deficient number, since it is larger than the sum of its proper divisors (60223965).
130836387 is a wasteful number, since it uses less digits than its factorization.
130836387 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15698.
The product of its (nonzero) digits is 72576, while the sum is 39.
The square root of 130836387 is about 11438.3734420590. The cubic root of 130836387 is about 507.6637820608.
The spelling of 130836387 in words is "one hundred thirty million, eight hundred thirty-six thousand, three hundred eighty-seven".
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