Base | Representation |
---|---|
bin | 101011111001… |
… | …1111010101100 |
3 | 1121022111101020 |
4 | 1113303322230 |
5 | 21343103210 |
6 | 2141214140 |
7 | 366442212 |
oct | 127637254 |
9 | 47274336 |
10 | 23019180 |
11 | 11aa2718 |
12 | 7861350 |
13 | 49cc722 |
14 | 30b2cb2 |
15 | 204a770 |
hex | 15f3eac |
23019180 has 48 divisors (see below), whose sum is σ = 66202080. Its totient is φ = 5971968.
The previous prime is 23019179. The next prime is 23019187. The reversal of 23019180 is 8191032.
It is a self number, because there is not a number n which added to its sum of digits gives 23019180.
It is not an unprimeable number, because it can be changed into a prime (23019187) 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, 2965 + ... + 7404.
It is an arithmetic number, because the mean of its divisors is an integer number (1379210).
Almost surely, 223019180 is an apocalyptic number.
23019180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23019180 is an abundant number, since it is smaller than the sum of its proper divisors (43182900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23019180 is a wasteful number, since it uses less digits than its factorization.
23019180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10418 (or 10416 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 24.
The square root of 23019180 is about 4797.8307598330. The cubic root of 23019180 is about 284.4657272803.
The spelling of 23019180 in words is "twenty-three million, nineteen thousand, one hundred eighty".
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