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23878869 = 3710710627
BaseRepresentation
bin101101100010…
…1110011010101
31122221011122120
41123011303111
522103110434
62211450153
7406652460
oct133056325
948834576
1023878869
111252a603
127bb6959
134c40b11
1432582d7
15216a349
hex16c5cd5

23878869 has 16 divisors (see below), whose sum is σ = 36730368. Its totient is φ = 13516272.

The previous prime is 23878859. The next prime is 23878873. The reversal of 23878869 is 96887832.

It is not a de Polignac number, because 23878869 - 25 = 23878837 is a prime.

It is a super-2 number, since 2×238788692 = 1140400769438322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23878819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067 + ... + 7560.

It is an arithmetic number, because the mean of its divisors is an integer number (2295648).

Almost surely, 223878869 is an apocalyptic number.

It is an amenable number.

23878869 is a deficient number, since it is larger than the sum of its proper divisors (12851499).

23878869 is a wasteful number, since it uses less digits than its factorization.

23878869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10744.

The product of its digits is 1161216, while the sum is 51.

The square root of 23878869 is about 4886.6009659067. The cubic root of 23878869 is about 287.9638144159.

The spelling of 23878869 in words is "twenty-three million, eight hundred seventy-eight thousand, eight hundred sixty-nine".

Divisors: 1 3 7 21 107 321 749 2247 10627 31881 74389 223167 1137089 3411267 7959623 23878869