Base | Representation |
---|---|
bin | 110011011100… |
… | …101111101000 |
3 | 221101012210111 |
4 | 303130233220 |
5 | 11423041310 |
6 | 1201024104 |
7 | 222431635 |
oct | 63345750 |
9 | 27335714 |
10 | 13487080 |
11 | 7682052 |
12 | 4625034 |
13 | 2a42b29 |
14 | 1b1118c |
15 | 12b628a |
hex | cdcbe8 |
13487080 has 32 divisors (see below), whose sum is σ = 30537000. Its totient is φ = 5360896.
The previous prime is 13487063. The next prime is 13487081. The reversal of 13487080 is 8078431.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 13439556 + 47524 = 3666^2 + 218^2 .
It is not an unprimeable number, because it can be changed into a prime (13487081) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5946 + ... + 7894.
Almost surely, 213487080 is an apocalyptic number.
13487080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13487080 is an abundant number, since it is smaller than the sum of its proper divisors (17049920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13487080 is a wasteful number, since it uses less digits than its factorization.
13487080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2133 (or 2129 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 31.
The square root of 13487080 is about 3672.4760040060. The cubic root of 13487080 is about 238.0341734702.
The spelling of 13487080 in words is "thirteen million, four hundred eighty-seven thousand, eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •