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23928816 = 243736829
BaseRepresentation
bin101101101000…
…1111111110000
31200000201011110
41123101333300
522111210231
62212513320
7410251212
oct133217760
950021143
1023928816
111256408a
12801b840
134c5a782
14326c5b2
15217a046
hex16d1ff0

23928816 has 40 divisors (see below), whose sum is σ = 62672080. Its totient is φ = 7865856.

The previous prime is 23928803. The next prime is 23928823. The reversal of 23928816 is 61882932.

It is a happy number.

It is a congruent number.

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, 90 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (1566802).

Almost surely, 223928816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23928816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31336040).

23928816 is an abundant number, since it is smaller than the sum of its proper divisors (38743264).

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

23928816 is a wasteful number, since it uses less digits than its factorization.

23928816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913 (or 6907 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 23928816 is about 4891.7089038495. The cubic root of 23928816 is about 288.1644508322.

The spelling of 23928816 in words is "twenty-three million, nine hundred twenty-eight thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 48 73 146 219 292 438 584 876 1168 1752 3504 6829 13658 20487 27316 40974 54632 81948 109264 163896 327792 498517 997034 1495551 1994068 2991102 3988136 5982204 7976272 11964408 23928816