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23230439 = 317011069
BaseRepresentation
bin101100010011…
…1011111100111
31121201020011122
41120213133213
521421333224
62145524155
7401312141
oct130473747
947636148
1023230439
1112127411
12794365b
134a7492b
143129c91
15208d15e
hex16277e7

23230439 has 8 divisors (see below), whose sum is σ = 24036480. Its totient is φ = 22428000.

The previous prime is 23230429. The next prime is 23230457. The reversal of 23230439 is 93403232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23230439 - 24 = 23230423 is a prime.

It is a super-3 number, since 3×232304393 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21197 + ... + 22265.

It is an arithmetic number, because the mean of its divisors is an integer number (3004560).

Almost surely, 223230439 is an apocalyptic number.

23230439 is a deficient number, since it is larger than the sum of its proper divisors (806041).

23230439 is a wasteful number, since it uses less digits than its factorization.

23230439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 23230439 is about 4819.7965724707. The cubic root of 23230439 is about 285.3333086162. Note that the first 4 decimals are identical.

The spelling of 23230439 in words is "twenty-three million, two hundred thirty thousand, four hundred thirty-nine".

Divisors: 1 31 701 1069 21731 33139 749369 23230439