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28482912 = 253298899
BaseRepresentation
bin110110010100…
…1110101100000
31222121002012200
41230221311200
524242423122
62454253200
7464046363
oct154516540
958532180
1028482912
11150946a7
129657200
135b935c3
143ad60da
1527795ac
hex1b29d60

28482912 has 36 divisors (see below), whose sum is σ = 80999100. Its totient is φ = 9494208.

The previous prime is 28482911. The next prime is 28482917. The reversal of 28482912 is 21928482.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×284829122 = 1622552551999488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28482911) 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, 49162 + ... + 49737.

It is an arithmetic number, because the mean of its divisors is an integer number (2249975).

Almost surely, 228482912 is an apocalyptic number.

It is an amenable number.

28482912 is an abundant number, since it is smaller than the sum of its proper divisors (52516188).

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

28482912 is a wasteful number, since it uses less digits than its factorization.

28482912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98915 (or 98904 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 28482912 is about 5336.9384482117. The cubic root of 28482912 is about 305.3946767329.

The spelling of 28482912 in words is "twenty-eight million, four hundred eighty-two thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 98899 197798 296697 395596 593394 791192 890091 1186788 1582384 1780182 2373576 3164768 3560364 4747152 7120728 9494304 14241456 28482912