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23881992 = 2331039661
BaseRepresentation
bin101101100011…
…0100100001000
31122221022221020
41123012210020
522103210432
62211512440
7406664541
oct133064410
948838836
1023881992
1112531992
127bb8720
134c42374
1432594c8
15216b22c
hex16c6908

23881992 has 32 divisors (see below), whose sum is σ = 60290880. Its totient is φ = 7882560.

The previous prime is 23881973. The next prime is 23882011. The reversal of 23881992 is 29918832.

It is an interprime number because it is at equal distance from previous prime (23881973) and next prime (23882011).

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, 2359 + ... + 7302.

It is an arithmetic number, because the mean of its divisors is an integer number (1884090).

Almost surely, 223881992 is an apocalyptic number.

It is an amenable number.

23881992 is an abundant number, since it is smaller than the sum of its proper divisors (36408888).

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

23881992 is a wasteful number, since it uses less digits than its factorization.

23881992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773 (or 9769 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

The square root of 23881992 is about 4886.9205027297. The cubic root of 23881992 is about 287.9763676596.

The spelling of 23881992 in words is "twenty-three million, eight hundred eighty-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 103 206 309 412 618 824 1236 2472 9661 19322 28983 38644 57966 77288 115932 231864 995083 1990166 2985249 3980332 5970498 7960664 11940996 23881992