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23982020 = 2258314447
BaseRepresentation
bin101101101111…
…0111111000100
31200010102010222
41123132333010
522114411040
62214003512
7410562266
oct133367704
950112128
1023982020
11125a0057
128046598
134c78a5a
143283b36
15218abb5
hex16defc4

23982020 has 24 divisors (see below), whose sum is σ = 50972544. Its totient is φ = 9476576.

The previous prime is 23981999. The next prime is 23982037. The reversal of 23982020 is 2028932.

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, 5564 + ... + 8883.

It is an arithmetic number, because the mean of its divisors is an integer number (2123856).

Almost surely, 223982020 is an apocalyptic number.

23982020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23982020 is an abundant number, since it is smaller than the sum of its proper divisors (26990524).

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

23982020 is a wasteful number, since it uses less digits than its factorization.

23982020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14539 (or 14537 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 23982020 is about 4897.1440656775. The cubic root of 23982020 is about 288.3778637124.

The spelling of 23982020 in words is "twenty-three million, nine hundred eighty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 14447 28894 57788 72235 144470 288940 1199101 2398202 4796404 5995505 11991010 23982020