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23873997 = 376118637
BaseRepresentation
bin101101100010…
…0100111001101
31122220220222010
41123010213031
522102431442
62211411433
7406632330
oct133044715
948826863
1023873997
1112526984
127bb3b79
134c3b834
143256617
152168b9c
hex16c49cd

23873997 has 16 divisors (see below), whose sum is σ = 36977792. Its totient is φ = 13417920.

The previous prime is 23873981. The next prime is 23874007. The reversal of 23873997 is 79937832.

It is not a de Polignac number, because 23873997 - 24 = 23873981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23873197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8038 + ... + 10599.

It is an arithmetic number, because the mean of its divisors is an integer number (2311112).

Almost surely, 223873997 is an apocalyptic number.

It is an amenable number.

23873997 is a deficient number, since it is larger than the sum of its proper divisors (13103795).

23873997 is a wasteful number, since it uses less digits than its factorization.

23873997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18708.

The product of its digits is 571536, while the sum is 48.

The square root of 23873997 is about 4886.1024344563. The cubic root of 23873997 is about 287.9442286874.

The spelling of 23873997 in words is "twenty-three million, eight hundred seventy-three thousand, nine hundred ninety-seven".

Divisors: 1 3 7 21 61 183 427 1281 18637 55911 130459 391377 1136857 3410571 7957999 23873997