Base | Representation |
---|---|
bin | 101011111001… |
… | …1111011110101 |
3 | 1121022111110221 |
4 | 1113303323311 |
5 | 21343104003 |
6 | 2141214341 |
7 | 366442345 |
oct | 127637365 |
9 | 47274427 |
10 | 23019253 |
11 | 11aa2784 |
12 | 78613b1 |
13 | 49cc77a |
14 | 30b2d25 |
15 | 204a7bd |
hex | 15f3ef5 |
23019253 has 4 divisors (see below), whose sum is σ = 23136300. Its totient is φ = 22902208.
The previous prime is 23019247. The next prime is 23019277. The reversal of 23019253 is 35291032.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 21362884 + 1656369 = 4622^2 + 1287^2 .
It is a cyclic number.
It is not a de Polignac number, because 23019253 - 29 = 23018741 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23019223) 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, 58228 + ... + 58621.
It is an arithmetic number, because the mean of its divisors is an integer number (5784075).
Almost surely, 223019253 is an apocalyptic number.
It is an amenable number.
23019253 is a deficient number, since it is larger than the sum of its proper divisors (117047).
23019253 is a wasteful number, since it uses less digits than its factorization.
23019253 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117046.
The product of its (nonzero) digits is 1620, while the sum is 25.
The square root of 23019253 is about 4797.8383674317. The cubic root of 23019253 is about 284.4660279857.
The spelling of 23019253 in words is "twenty-three million, nineteen thousand, two hundred fifty-three".
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