Base | Representation |
---|---|
bin | 110001101001… |
… | …101101111010 |
3 | 220111021111111 |
4 | 301221231322 |
5 | 11313002210 |
6 | 1142550534 |
7 | 215430214 |
oct | 61515572 |
9 | 26437444 |
10 | 13015930 |
11 | 7390074 |
12 | 443844a |
13 | 2909545 |
14 | 1a2b5b4 |
15 | 122188a |
hex | c69b7a |
13015930 has 16 divisors (see below), whose sum is σ = 24447744. Its totient is φ = 4979920.
The previous prime is 13015921. The next prime is 13015943. The reversal of 13015930 is 3951031.
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, 28066 + ... + 28525.
It is an arithmetic number, because the mean of its divisors is an integer number (1527984).
Almost surely, 213015930 is an apocalyptic number.
13015930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13015930 is a deficient number, since it is larger than the sum of its proper divisors (11431814).
13015930 is a wasteful number, since it uses less digits than its factorization.
13015930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56621.
The product of its (nonzero) digits is 405, while the sum is 22.
The square root of 13015930 is about 3607.7596926625. The cubic root of 13015930 is about 235.2294725473.
Adding to 13015930 its reverse (3951031), we get a palindrome (16966961).
The spelling of 13015930 in words is "thirteen million, fifteen thousand, nine hundred thirty".
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