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20068384 = 25789591
BaseRepresentation
bin100110010001…
…1100000100000
31101202120122111
41030203200200
520114142014
61554045104
7332402260
oct114434040
941676574
1020068384
1110367746
126879794
1342085ab
1429457a0
151b662c4
hex1323820

20068384 has 24 divisors (see below), whose sum is σ = 45154368. Its totient is φ = 8600640.

The previous prime is 20068361. The next prime is 20068409. The reversal of 20068384 is 48386002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44572 + ... + 45019.

It is an arithmetic number, because the mean of its divisors is an integer number (1881432).

Almost surely, 220068384 is an apocalyptic number.

It is an amenable number.

20068384 is an abundant number, since it is smaller than the sum of its proper divisors (25085984).

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

20068384 is an equidigital number, since it uses as much as digits as its factorization.

20068384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89608 (or 89600 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 20068384 is about 4479.7749943496. The cubic root of 20068384 is about 271.7507809509.

The spelling of 20068384 in words is "twenty million, sixty-eight thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 89591 179182 358364 627137 716728 1254274 1433456 2508548 2866912 5017096 10034192 20068384