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23996238 = 237571339
BaseRepresentation
bin101101110001…
…0011101001110
31200011010122120
41123202131032
522120334423
62214153410
7410651610
oct133423516
950133576
1023996238
11125aa802
128052866
134c82376
143288db0
15218eee3
hex16e274e

23996238 has 16 divisors (see below), whose sum is σ = 54848640. Its totient is φ = 6856056.

The previous prime is 23996207. The next prime is 23996257. The reversal of 23996238 is 83269932.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 571339 = 23996238 / (2 + 3 + 9 + 9 + 6 + 2 + 3 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 23996238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285628 + ... + 285711.

It is an arithmetic number, because the mean of its divisors is an integer number (3428040).

Almost surely, 223996238 is an apocalyptic number.

23996238 is an abundant number, since it is smaller than the sum of its proper divisors (30852402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23996238 is a wasteful number, since it uses less digits than its factorization.

23996238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571351.

The product of its digits is 139968, while the sum is 42.

The square root of 23996238 is about 4898.5955130017. The cubic root of 23996238 is about 288.4348417659.

The spelling of 23996238 in words is "twenty-three million, nine hundred ninety-six thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 7 14 21 42 571339 1142678 1714017 3428034 3999373 7998746 11998119 23996238