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23230665 = 335172079
BaseRepresentation
bin101100010011…
…1100011001001
31121201020111000
41120213203021
521421340130
62145525213
7401312613
oct130474311
947636430
1023230665
11121275a7
127943809
134a74a73
143129db3
15208d260
hex16278c9

23230665 has 16 divisors (see below), whose sum is σ = 41299200. Its totient is φ = 12389616.

The previous prime is 23230657. The next prime is 23230693. The reversal of 23230665 is 56603232.

It is not a de Polignac number, because 23230665 - 23 = 23230657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85905 + ... + 86174.

It is an arithmetic number, because the mean of its divisors is an integer number (2581200).

Almost surely, 223230665 is an apocalyptic number.

It is an amenable number.

23230665 is a deficient number, since it is larger than the sum of its proper divisors (18068535).

23230665 is a wasteful number, since it uses less digits than its factorization.

23230665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172093 (or 172087 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 23230665 is about 4819.8200173865. The cubic root of 23230665 is about 285.3342339125.

Adding to 23230665 its reverse (56603232), we get a palindrome (79833897).

The spelling of 23230665 in words is "twenty-three million, two hundred thirty thousand, six hundred sixty-five".

Divisors: 1 3 5 9 15 27 45 135 172079 516237 860395 1548711 2581185 4646133 7743555 23230665