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23878923 = 321533697
BaseRepresentation
bin101101100010…
…1110100001011
31122221011201120
41123011310023
522103111143
62211450323
7406652565
oct133056413
948834646
1023878923
111252a652
127bb69a3
134c40b53
143258335
15216a383
hex16c5d0b

23878923 has 8 divisors (see below), whose sum is σ = 31861968. Its totient is φ = 15907584.

The previous prime is 23878913. The next prime is 23878973. The reversal of 23878923 is 32987832.

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

It is not a de Polignac number, because 23878923 - 26 = 23878859 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (23878903) 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 7 ways as a sum of consecutive naturals, for example, 4611 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (3982746).

Almost surely, 223878923 is an apocalyptic number.

23878923 is a deficient number, since it is larger than the sum of its proper divisors (7983045).

23878923 is a wasteful number, since it uses less digits than its factorization.

23878923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5853.

The product of its digits is 145152, while the sum is 42.

The square root of 23878923 is about 4886.6064912166. The cubic root of 23878923 is about 287.9640314841.

The spelling of 23878923 in words is "twenty-three million, eight hundred seventy-eight thousand, nine hundred twenty-three".

Divisors: 1 3 2153 3697 6459 11091 7959641 23878923