Base | Representation |
---|---|
bin | 110001100111… |
… | …011110111100 |
3 | 220110210221121 |
4 | 301213132330 |
5 | 11312204110 |
6 | 1142440324 |
7 | 215361433 |
oct | 61473674 |
9 | 26423847 |
10 | 13006780 |
11 | 7384206 |
12 | 44330a4 |
13 | 2905327 |
14 | 1a2811a |
15 | 121dcda |
hex | c677bc |
13006780 has 48 divisors (see below), whose sum is σ = 28377216. Its totient is φ = 5004800.
The previous prime is 13006739. The next prime is 13006793. The reversal of 13006780 is 8760031.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94872 + ... + 95008.
It is an arithmetic number, because the mean of its divisors is an integer number (591192).
Almost surely, 213006780 is an apocalyptic number.
13006780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13006780 is an abundant number, since it is smaller than the sum of its proper divisors (15370436).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13006780 is a wasteful number, since it uses less digits than its factorization.
13006780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 294 (or 292 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 25.
The square root of 13006780 is about 3606.4913697387. The cubic root of 13006780 is about 235.1743387170.
The spelling of 13006780 in words is "thirteen million, six thousand, seven hundred eighty".
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