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28385024 = 28110879
BaseRepresentation
bin110110001000…
…1111100000000
31222102002221012
41230101330000
524231310044
62452220052
7463161113
oct154217400
958362835
1028385024
11150280a8
12960a628
135b5ab95
143aac57a
15275a59e
hex1b11f00

28385024 has 18 divisors (see below), whose sum is σ = 56659680. Its totient is φ = 14192384.

The previous prime is 28385023. The next prime is 28385029. The reversal of 28385024 is 42058382.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28385023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55184 + ... + 55695.

It is an arithmetic number, because the mean of its divisors is an integer number (3147760).

Almost surely, 228385024 is an apocalyptic number.

It is an amenable number.

28385024 is a deficient number, since it is larger than the sum of its proper divisors (28274656).

28385024 is an equidigital number, since it uses as much as digits as its factorization.

28385024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110895 (or 110881 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 28385024 is about 5327.7597543433. The cubic root of 28385024 is about 305.0444224466.

The spelling of 28385024 in words is "twenty-eight million, three hundred eighty-five thousand, twenty-four".

Divisors: 1 2 4 8 16 32 64 128 256 110879 221758 443516 887032 1774064 3548128 7096256 14192512 28385024