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23864769 = 323318011
BaseRepresentation
bin101101100001…
…0010111000001
31122220110022100
41123002113001
522102133034
62211301013
7406563405
oct133022701
948813270
1023864769
111251aa55
127baa769
134c37586
143253105
152166099
hex16c25c1

23864769 has 12 divisors (see below), whose sum is σ = 34579792. Its totient is φ = 15859800.

The previous prime is 23864749. The next prime is 23864773. The reversal of 23864769 is 96746832.

It is not a de Polignac number, because 23864769 - 27 = 23864641 is a prime.

It is a super-2 number, since 2×238647692 = 1139054398846722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23864749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1027 + ... + 6984.

Almost surely, 223864769 is an apocalyptic number.

It is an amenable number.

23864769 is a deficient number, since it is larger than the sum of its proper divisors (10715023).

23864769 is a wasteful number, since it uses less digits than its factorization.

23864769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8348 (or 8345 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 23864769 is about 4885.1580322442. The cubic root of 23864769 is about 287.9071242767.

The spelling of 23864769 in words is "twenty-three million, eight hundred sixty-four thousand, seven hundred sixty-nine".

Divisors: 1 3 9 331 993 2979 8011 24033 72099 2651641 7954923 23864769