Base | Representation |
---|---|
bin | 110100111110… |
… | …101000011110 |
3 | 222010120210111 |
4 | 310332220132 |
5 | 12023404110 |
6 | 1213400234 |
7 | 226021612 |
oct | 64765036 |
9 | 28116714 |
10 | 13888030 |
11 | 7926312 |
12 | 479907a |
13 | 2b53490 |
14 | 1bb7342 |
15 | 1344e8a |
hex | d3ea1e |
13888030 has 32 divisors (see below), whose sum is σ = 27506304. Its totient is φ = 5016576.
The previous prime is 13888009. The next prime is 13888033. The reversal of 13888030 is 3088831.
It is a junction number, because it is equal to n+sod(n) for n = 13887983 and 13888001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13888033) 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, 4974 + ... + 7246.
It is an arithmetic number, because the mean of its divisors is an integer number (859572).
Almost surely, 213888030 is an apocalyptic number.
13888030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13888030 is a deficient number, since it is larger than the sum of its proper divisors (13618274).
13888030 is a wasteful number, since it uses less digits than its factorization.
13888030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2340.
The product of its (nonzero) digits is 4608, while the sum is 31.
The square root of 13888030 is about 3726.6647286817. The cubic root of 13888030 is about 240.3699733539.
The spelling of 13888030 in words is "thirteen million, eight hundred eighty-eight thousand, thirty".
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