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23039297 = 148915473
BaseRepresentation
bin101011111100…
…0110101000001
31121100111222022
41113320311001
521344224142
62141451225
7366554651
oct127706501
947314868
1023039297
1112006846
127870b15
134a08928
1430ba361
1520516d2
hex15f8d41

23039297 has 4 divisors (see below), whose sum is σ = 23056260. Its totient is φ = 23022336.

The previous prime is 23039281. The next prime is 23039321. The reversal of 23039297 is 79293032.

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 7230721 + 15808576 = 2689^2 + 3976^2 .

It is a cyclic number.

It is not a de Polignac number, because 23039297 - 24 = 23039281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23039207) 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 3 ways as a sum of consecutive naturals, for example, 6248 + ... + 9225.

It is an arithmetic number, because the mean of its divisors is an integer number (5764065).

Almost surely, 223039297 is an apocalyptic number.

It is an amenable number.

23039297 is a deficient number, since it is larger than the sum of its proper divisors (16963).

23039297 is a wasteful number, since it uses less digits than its factorization.

23039297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16962.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 23039297 is about 4799.9267702747. The cubic root of 23039297 is about 284.5485702372.

The spelling of 23039297 in words is "twenty-three million, thirty-nine thousand, two hundred ninety-seven".

Divisors: 1 1489 15473 23039297