Base | Representation |
---|---|
bin | 100110110111… |
… | …010101101011 |
3 | 201011121111111 |
4 | 212313111223 |
5 | 10102010024 |
6 | 1002211151 |
7 | 152412013 |
oct | 46672553 |
9 | 21147444 |
10 | 10188139 |
11 | 5829555 |
12 | 34b3ab7 |
13 | 21593b0 |
14 | 14d2c43 |
15 | d63a94 |
hex | 9b756b |
10188139 has 4 divisors (see below), whose sum is σ = 10971856. Its totient is φ = 9404424.
The previous prime is 10188133. The next prime is 10188163. The reversal of 10188139 is 93188101.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93188101 = 17 ⋅5481653.
It is a cyclic number.
It is not a de Polignac number, because 10188139 - 25 = 10188107 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 10188139.
It is not an unprimeable number, because it can be changed into a prime (10188133) 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, 391839 + ... + 391864.
It is an arithmetic number, because the mean of its divisors is an integer number (2742964).
Almost surely, 210188139 is an apocalyptic number.
10188139 is a deficient number, since it is larger than the sum of its proper divisors (783717).
10188139 is an equidigital number, since it uses as much as digits as its factorization.
10188139 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 783716.
The product of its (nonzero) digits is 1728, while the sum is 31.
The square root of 10188139 is about 3191.8864328168. The cubic root of 10188139 is about 216.7861938781.
The spelling of 10188139 in words is "ten million, one hundred eighty-eight thousand, one hundred thirty-nine".
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