Base | Representation |
---|---|
bin | 110001110100… |
… | …110010100000 |
3 | 220120120201010 |
4 | 301310302200 |
5 | 11320430110 |
6 | 1143540520 |
7 | 216006351 |
oct | 61646240 |
9 | 26516633 |
10 | 13061280 |
11 | 7411151 |
12 | 445a740 |
13 | 292408b |
14 | 1a3dd28 |
15 | 1230020 |
hex | c74ca0 |
13061280 has 48 divisors (see below), whose sum is σ = 41144544. Its totient is φ = 3482880.
The previous prime is 13061249. The next prime is 13061291. The reversal of 13061280 is 8216031.
It is a tau number, because it is divible by the number of its divisors (48).
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, 13126 + ... + 14085.
It is an arithmetic number, because the mean of its divisors is an integer number (857178).
Almost surely, 213061280 is an apocalyptic number.
13061280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13061280 is an abundant number, since it is smaller than the sum of its proper divisors (28083264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13061280 is a wasteful number, since it uses less digits than its factorization.
13061280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27229 (or 27221 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 21.
The square root of 13061280 is about 3614.0392914300. The cubic root of 13061280 is about 235.5023507593.
The spelling of 13061280 in words is "thirteen million, sixty-one thousand, two hundred eighty".
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