Base | Representation |
---|---|
bin | 101011111110… |
… | …1010101001001 |
3 | 1121101110021021 |
4 | 1113331111021 |
5 | 21400321422 |
6 | 2142112441 |
7 | 366662503 |
oct | 127752511 |
9 | 47343237 |
10 | 23057737 |
11 | 1201968a |
12 | 787b721 |
13 | 4a14141 |
14 | 30c2d73 |
15 | 2056dc7 |
hex | 15fd549 |
23057737 has 4 divisors (see below), whose sum is σ = 23223760. Its totient is φ = 22891716.
The previous prime is 23057719. The next prime is 23057743. The reversal of 23057737 is 73775032.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 23057737 - 27 = 23057609 is a prime.
It is a super-2 number, since 2×230577372 = 1063318471122338, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23057717) 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, 82803 + ... + 83080.
It is an arithmetic number, because the mean of its divisors is an integer number (5805940).
Almost surely, 223057737 is an apocalyptic number.
It is an amenable number.
23057737 is a deficient number, since it is larger than the sum of its proper divisors (166023).
23057737 is a wasteful number, since it uses less digits than its factorization.
23057737 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 166022.
The product of its (nonzero) digits is 30870, while the sum is 34.
The square root of 23057737 is about 4801.8472487159. The cubic root of 23057737 is about 284.6244648617.
The spelling of 23057737 in words is "twenty-three million, fifty-seven thousand, seven hundred thirty-seven".
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