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28068024 = 23347149167
BaseRepresentation
bin110101100010…
…0100010111000
31221211000002110
41223010202320
524141134044
62441332320
7460400655
oct153044270
957730073
1028068024
1114930a16
1294970a0
135a797ca
143a28c2c
1526e66b9
hex1ac48b8

28068024 has 64 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 9041024.

The previous prime is 28067999. The next prime is 28068049. The reversal of 28068024 is 42086082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28067999) and next prime (28068049).

It is a junction number, because it is equal to n+sod(n) for n = 28067982 and 28068000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167989 + ... + 168155.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 228068024 is an apocalyptic number.

28068024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28068024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36288000).

28068024 is an abundant number, since it is smaller than the sum of its proper divisors (44507976).

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

28068024 is a wasteful number, since it uses less digits than its factorization.

28068024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 368 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 28068024 is about 5297.9263868046. The cubic root of 28068024 is about 303.9046041859.

The spelling of 28068024 in words is "twenty-eight million, sixty-eight thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 24 47 94 141 149 167 188 282 298 334 376 447 501 564 596 668 894 1002 1128 1192 1336 1788 2004 3576 4008 7003 7849 14006 15698 21009 23547 24883 28012 31396 42018 47094 49766 56024 62792 74649 84036 94188 99532 149298 168072 188376 199064 298596 597192 1169501 2339002 3508503 4678004 7017006 9356008 14034012 28068024