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23894688 = 253248903
BaseRepresentation
bin101101100100…
…1101010100000
31122221222100110
41123021222200
522104112223
62212051320
7410046546
oct133115240
948858313
1023894688
1112540484
128003b40
134c4808c
14325dd96
15216ed93
hex16c9aa0

23894688 has 24 divisors (see below), whose sum is σ = 62723808. Its totient is φ = 7964864.

The previous prime is 23894687. The next prime is 23894699. The reversal of 23894688 is 88649832.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×238946882 = 1141912229234688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (23894687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124356 + ... + 124547.

It is an arithmetic number, because the mean of its divisors is an integer number (2613492).

Almost surely, 223894688 is an apocalyptic number.

It is an amenable number.

23894688 is an abundant number, since it is smaller than the sum of its proper divisors (38829120).

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

23894688 is a wasteful number, since it uses less digits than its factorization.

23894688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248916 (or 248908 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 23894688 is about 4888.2193076825. The cubic root of 23894688 is about 288.0273893704.

The spelling of 23894688 in words is "twenty-three million, eight hundred ninety-four thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 248903 497806 746709 995612 1493418 1991224 2986836 3982448 5973672 7964896 11947344 23894688