Base | Representation |
---|---|
bin | 101011111001… |
… | …1111011110111 |
3 | 1121022111111000 |
4 | 1113303323313 |
5 | 21343104010 |
6 | 2141214343 |
7 | 366442350 |
oct | 127637367 |
9 | 47274430 |
10 | 23019255 |
11 | 11aa2786 |
12 | 78613b3 |
13 | 49cc77c |
14 | 30b2d27 |
15 | 204a7c0 |
hex | 15f3ef7 |
23019255 has 32 divisors (see below), whose sum is σ = 46771200. Its totient is φ = 10522656.
The previous prime is 23019247. The next prime is 23019277. The reversal of 23019255 is 55291032.
It is not a de Polignac number, because 23019255 - 23 = 23019247 is a prime.
It is a super-2 number, since 2×230192552 = 1059772201510050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11235 + ... + 13124.
It is an arithmetic number, because the mean of its divisors is an integer number (1461600).
Almost surely, 223019255 is an apocalyptic number.
23019255 is an abundant number, since it is smaller than the sum of its proper divisors (23751945).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23019255 is a wasteful number, since it uses less digits than its factorization.
23019255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24380 (or 24374 counting only the distinct ones).
The product of its (nonzero) digits is 2700, while the sum is 27.
The square root of 23019255 is about 4797.8385758589. The cubic root of 23019255 is about 284.4660362242.
The spelling of 23019255 in words is "twenty-three million, nineteen thousand, two hundred fifty-five".
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