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28485076 = 2229245561
BaseRepresentation
bin110110010101…
…0010111010100
31222121012011211
41230222113110
524243010301
62454311204
7464055604
oct154522724
958535154
1028485076
1115096294
129658504
135b94599
143ad6c04
15277a051
hex1b2a5d4

28485076 has 12 divisors (see below), whose sum is σ = 51568020. Its totient is φ = 13751360.

The previous prime is 28485071. The next prime is 28485089. The reversal of 28485076 is 67058482.

It can be written as a sum of positive squares in 2 ways, for example, as 16402500 + 12082576 = 4050^2 + 3476^2 .

It is a super-3 number, since 3×284850763 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122665 + ... + 122896.

It is an arithmetic number, because the mean of its divisors is an integer number (4297335).

Almost surely, 228485076 is an apocalyptic number.

It is an amenable number.

28485076 is a deficient number, since it is larger than the sum of its proper divisors (23082944).

28485076 is a wasteful number, since it uses less digits than its factorization.

28485076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245594 (or 245592 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 28485076 is about 5337.1411823185. The cubic root of 28485076 is about 305.4024106957.

The spelling of 28485076 in words is "twenty-eight million, four hundred eighty-five thousand, seventy-six".

Divisors: 1 2 4 29 58 116 245561 491122 982244 7121269 14242538 28485076