Base | Representation |
---|---|
bin | 101100001001… |
… | …1001110100110 |
3 | 1121120000022020 |
4 | 1120103032212 |
5 | 21411204210 |
6 | 2144044010 |
7 | 400515135 |
oct | 130231646 |
9 | 47500266 |
10 | 23147430 |
11 | 12080009 |
12 | 7903606 |
13 | 4a45c07 |
14 | 310791c |
15 | 2073770 |
hex | 16133a6 |
23147430 has 32 divisors (see below), whose sum is σ = 57970944. Its totient is φ = 5904096.
The previous prime is 23147429. The next prime is 23147431. The reversal of 23147430 is 3474132.
It is an interprime number because it is at equal distance from previous prime (23147429) and next prime (23147431).
It is a self number, because there is not a number n which added to its sum of digits gives 23147430.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23147431) 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, 16084 + ... + 17463.
It is an arithmetic number, because the mean of its divisors is an integer number (1811592).
Almost surely, 223147430 is an apocalyptic number.
23147430 is an abundant number, since it is smaller than the sum of its proper divisors (34823514).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23147430 is a wasteful number, since it uses less digits than its factorization.
23147430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33580.
The product of its (nonzero) digits is 2016, while the sum is 24.
The square root of 23147430 is about 4811.1776105232. The cubic root of 23147430 is about 284.9930438438.
The spelling of 23147430 in words is "twenty-three million, one hundred forty-seven thousand, four hundred thirty".
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