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28794816 = 263249991
BaseRepresentation
bin110110111010…
…1111111000000
32000011221001200
41231311333000
524332413231
62505101200
7466515621
oct155657700
960157050
1028794816
1115287a76
129787800
135c7256b
143b77a48
1527dbbe6
hex1b75fc0

28794816 has 42 divisors (see below), whose sum is σ = 82536792. Its totient is φ = 9598080.

The previous prime is 28794803. The next prime is 28794817. The reversal of 28794816 is 61849782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28794817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24420 + ... + 25571.

Almost surely, 228794816 is an apocalyptic number.

It is an amenable number.

28794816 is an abundant number, since it is smaller than the sum of its proper divisors (53741976).

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

28794816 is a wasteful number, since it uses less digits than its factorization.

28794816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50009 (or 49996 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 28794816 is about 5366.0801335798. The cubic root of 28794816 is about 306.5053804274.

The spelling of 28794816 in words is "twenty-eight million, seven hundred ninety-four thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 144 192 288 576 49991 99982 149973 199964 299946 399928 449919 599892 799856 899838 1199784 1599712 1799676 2399568 3199424 3599352 4799136 7198704 9598272 14397408 28794816