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23982997 = 192354881
BaseRepresentation
bin101101101111…
…1001110010101
31200010110111011
41123133032111
522114423442
62214012221
7410565163
oct133371625
950113434
1023982997
11125a0865
128047071
134c7932c
143284233
15218b117
hex16df395

23982997 has 8 divisors (see below), whose sum is σ = 26343360. Its totient is φ = 21732480.

The previous prime is 23982989. The next prime is 23983013. The reversal of 23982997 is 79928932.

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 23982997 - 23 = 23982989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23982997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23982947) 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, 27004 + ... + 27877.

It is an arithmetic number, because the mean of its divisors is an integer number (3292920).

Almost surely, 223982997 is an apocalyptic number.

It is an amenable number.

23982997 is a deficient number, since it is larger than the sum of its proper divisors (2360363).

23982997 is a wasteful number, since it uses less digits than its factorization.

23982997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54923.

The product of its digits is 489888, while the sum is 49.

The square root of 23982997 is about 4897.2438166789. The cubic root of 23982997 is about 288.3817797204.

The spelling of 23982997 in words is "twenty-three million, nine hundred eighty-two thousand, nine hundred ninety-seven".

Divisors: 1 19 23 437 54881 1042739 1262263 23982997