Base | Representation |
---|---|
bin | 110100111100… |
… | …110101101000 |
3 | 222010012201021 |
4 | 310330311220 |
5 | 12023140210 |
6 | 1213302224 |
7 | 225661312 |
oct | 64746550 |
9 | 28105637 |
10 | 13880680 |
11 | 7920840 |
12 | 4794974 |
13 | 2b50028 |
14 | 1bb47b2 |
15 | 1342bda |
hex | d3cd68 |
13880680 has 32 divisors (see below), whose sum is σ = 34071840. Its totient is φ = 5047360.
The previous prime is 13880677. The next prime is 13880717. The reversal of 13880680 is 8608831.
13880680 is nontrivially palindromic in base 12.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15334 + ... + 16213.
It is an arithmetic number, because the mean of its divisors is an integer number (1064745).
Almost surely, 213880680 is an apocalyptic number.
13880680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13880680 is an abundant number, since it is smaller than the sum of its proper divisors (20191160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13880680 is a wasteful number, since it uses less digits than its factorization.
13880680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31569 (or 31565 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 34.
The square root of 13880680 is about 3725.6784617033. The cubic root of 13880680 is about 240.3275619856.
The spelling of 13880680 in words is "thirteen million, eight hundred eighty thousand, six hundred eighty".
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