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23274489 = 376118169
BaseRepresentation
bin101100011001…
…0001111111001
31121210110121010
41120302033321
521424240424
62150504133
7401554440
oct130621771
947713533
1023274489
1112157517
127965049
134a8b9b4
14313bd57
15209b229
hex16323f9

23274489 has 16 divisors (see below), whose sum is σ = 36049280. Its totient is φ = 13080960.

The previous prime is 23274469. The next prime is 23274499. The reversal of 23274489 is 98447232.

It is not a de Polignac number, because 23274489 - 28 = 23274233 is a prime.

It is a super-2 number, since 2×232744892 = 1083403676422242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23274409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7804 + ... + 10365.

It is an arithmetic number, because the mean of its divisors is an integer number (2253080).

Almost surely, 223274489 is an apocalyptic number.

It is an amenable number.

23274489 is a deficient number, since it is larger than the sum of its proper divisors (12774791).

23274489 is a wasteful number, since it uses less digits than its factorization.

23274489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240.

The product of its digits is 96768, while the sum is 39.

The square root of 23274489 is about 4824.3641031746. The cubic root of 23274489 is about 285.5135462220.

The spelling of 23274489 in words is "twenty-three million, two hundred seventy-four thousand, four hundred eighty-nine".

Divisors: 1 3 7 21 61 183 427 1281 18169 54507 127183 381549 1108309 3324927 7758163 23274489