Base | Representation |
---|---|
bin | 1100110111000… |
… | …11111100000101 |
3 | 21112000022001021 |
4 | 12123203330011 |
5 | 210104412024 |
6 | 14412231141 |
7 | 2450015260 |
oct | 633437405 |
9 | 245008037 |
10 | 107888389 |
11 | 5599a164 |
12 | 3016b4b1 |
13 | 194761ab |
14 | 10485cd7 |
15 | 9711de4 |
hex | 66e3f05 |
107888389 has 4 divisors (see below), whose sum is σ = 123301024. Its totient is φ = 92475756.
The previous prime is 107888371. The next prime is 107888399. The reversal of 107888389 is 983888701.
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: 983888701 = 163 ⋅6036127.
It is a cyclic number.
It is not a de Polignac number, because 107888389 - 25 = 107888357 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (107888399) 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, 7706307 + ... + 7706320.
It is an arithmetic number, because the mean of its divisors is an integer number (30825256).
Almost surely, 2107888389 is an apocalyptic number.
It is an amenable number.
107888389 is a deficient number, since it is larger than the sum of its proper divisors (15412635).
107888389 is an equidigital number, since it uses as much as digits as its factorization.
107888389 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15412634.
The product of its (nonzero) digits is 774144, while the sum is 52.
The square root of 107888389 is about 10386.9335705972. The cubic root of 107888389 is about 476.0562114371.
The spelling of 107888389 in words is "one hundred seven million, eight hundred eighty-eight thousand, three hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •