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23840982 = 232113472
BaseRepresentation
bin101101011110…
…0100011010110
31122212020200100
41122330203112
522100402412
62210554530
7406434144
oct132744326
948766610
1023840982
11125040a0
127b98a46
134c297b9
143248594
15215dedc
hex16bc8d6

23840982 has 36 divisors (see below), whose sum is σ = 56514276. Its totient is φ = 7203720.

The previous prime is 23840981. The next prime is 23840989. The reversal of 23840982 is 28904832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23840981) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 68533 + ... + 68879.

It is an arithmetic number, because the mean of its divisors is an integer number (1569841).

Almost surely, 223840982 is an apocalyptic number.

23840982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23840982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28257138).

23840982 is an abundant number, since it is smaller than the sum of its proper divisors (32673294).

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

23840982 is a wasteful number, since it uses less digits than its factorization.

23840982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 23840982 is about 4882.7228059762. The cubic root of 23840982 is about 287.8114361740.

The spelling of 23840982 in words is "twenty-three million, eight hundred forty thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 347 694 1041 2082 3123 3817 6246 7634 11451 22902 34353 68706 120409 240818 361227 722454 1083681 1324499 2167362 2648998 3973497 7946994 11920491 23840982