Base | Representation |
---|---|
bin | 110001110010… |
… | …000000011000 |
3 | 220120000001220 |
4 | 301302000120 |
5 | 11320044010 |
6 | 1143412040 |
7 | 215631204 |
oct | 61620030 |
9 | 26500056 |
10 | 13049880 |
11 | 7403628 |
12 | 4454020 |
13 | 291bb2c |
14 | 1a39b04 |
15 | 122b970 |
hex | c72018 |
13049880 has 64 divisors (see below), whose sum is σ = 41459040. Its totient is φ = 3274752.
The previous prime is 13049843. The next prime is 13049887. The reversal of 13049880 is 8894031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13049887) 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, 1159 + ... + 5238.
Almost surely, 213049880 is an apocalyptic number.
13049880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13049880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20729520).
13049880 is an abundant number, since it is smaller than the sum of its proper divisors (28409160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13049880 is a wasteful number, since it uses less digits than its factorization.
13049880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6428 (or 6424 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 13049880 is about 3612.4617645035. The cubic root of 13049880 is about 235.4338146418.
The spelling of 13049880 in words is "thirteen million, forty-nine thousand, eight hundred eighty".
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