Base | Representation |
---|---|
bin | 101100000011… |
… | …1111111001001 |
3 | 1121110200010212 |
4 | 1120013333021 |
5 | 21403221020 |
6 | 2143050505 |
7 | 400233656 |
oct | 130077711 |
9 | 47420125 |
10 | 23101385 |
11 | 1204945a |
12 | 78a0a35 |
13 | 4a2ac78 |
14 | 30d4c2d |
15 | 2064cc5 |
hex | 1607fc9 |
23101385 has 16 divisors (see below), whose sum is σ = 29465856. Its totient is φ = 17326848.
The previous prime is 23101373. The next prime is 23101387. The reversal of 23101385 is 58310132.
It is a cyclic number.
It is not a de Polignac number, because 23101385 - 28 = 23101129 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 23101385.
It is not an unprimeable number, because it can be changed into a prime (23101387) 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, 39062 + ... + 39648.
It is an arithmetic number, because the mean of its divisors is an integer number (1841616).
Almost surely, 223101385 is an apocalyptic number.
It is an amenable number.
23101385 is a deficient number, since it is larger than the sum of its proper divisors (6364471).
23101385 is a wasteful number, since it uses less digits than its factorization.
23101385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1072.
The product of its (nonzero) digits is 720, while the sum is 23.
The square root of 23101385 is about 4806.3900174663. The cubic root of 23101385 is about 284.8039484747.
The spelling of 23101385 in words is "twenty-three million, one hundred one thousand, three hundred eighty-five".
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