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23270013 = 3213593371
BaseRepresentation
bin101100011000…
…1001001111101
31121210020110100
41120301021331
521424120023
62150431313
7401535414
oct130611175
947706410
1023270013
1112154118
127962539
134a89950
14313a47b
152099c43
hex163127d

23270013 has 24 divisors (see below), whose sum is σ = 36822240. Its totient is φ = 14073120.

The previous prime is 23270011. The next prime is 23270047. The reversal of 23270013 is 31007232.

It is not a de Polignac number, because 23270013 - 21 = 23270011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23270011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5218 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (1534260).

Almost surely, 223270013 is an apocalyptic number.

It is an amenable number.

23270013 is a deficient number, since it is larger than the sum of its proper divisors (13552227).

23270013 is a wasteful number, since it uses less digits than its factorization.

23270013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449 (or 3446 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 23270013 is about 4823.9001855345. The cubic root of 23270013 is about 285.4952423391.

Adding to 23270013 its reverse (31007232), we get a palindrome (54277245).

The spelling of 23270013 in words is "twenty-three million, two hundred seventy thousand, thirteen".

Divisors: 1 3 9 13 39 59 117 177 531 767 2301 3371 6903 10113 30339 43823 131469 198889 394407 596667 1790001 2585557 7756671 23270013