Base | Representation |
---|---|
bin | 110100110010… |
… | …100111001001 |
3 | 222001002020220 |
4 | 310302213021 |
5 | 12020320133 |
6 | 1212340253 |
7 | 225425223 |
oct | 64624711 |
9 | 28032226 |
10 | 13838793 |
11 | 78a2321 |
12 | 4774689 |
13 | 2b36c47 |
14 | 1ba3413 |
15 | 13355b3 |
hex | d329c9 |
13838793 has 4 divisors (see below), whose sum is σ = 18451728. Its totient is φ = 9225860.
The previous prime is 13838791. The next prime is 13838807. The reversal of 13838793 is 39783831.
13838793 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 39783831 = 3 ⋅13261277.
It is a cyclic number.
It is not a de Polignac number, because 13838793 - 21 = 13838791 is a prime.
It is not an unprimeable number, because it can be changed into a prime (13838791) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306463 + ... + 2306468.
It is an arithmetic number, because the mean of its divisors is an integer number (4612932).
Almost surely, 213838793 is an apocalyptic number.
It is an amenable number.
13838793 is a deficient number, since it is larger than the sum of its proper divisors (4612935).
13838793 is an equidigital number, since it uses as much as digits as its factorization.
13838793 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4612934.
The product of its digits is 108864, while the sum is 42.
The square root of 13838793 is about 3720.0528222056. The cubic root of 13838793 is about 240.0855771209.
The spelling of 13838793 in words is "thirteen million, eight hundred thirty-eight thousand, seven hundred ninety-three".
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