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28183076 = 2217414457
BaseRepresentation
bin110101110000…
…0101000100100
31222000211220122
41223200220210
524203324301
62444021112
7461360255
oct153405044
958024818
1028183076
11149aa3a9
129531798
135ab9c9c
143a58b2c
15271a81b
hex1ae0a24

28183076 has 12 divisors (see below), whose sum is σ = 52221708. Its totient is φ = 13262592.

The previous prime is 28183063. The next prime is 28183079. The reversal of 28183076 is 67038182.

It can be written as a sum of positive squares in 2 ways, for example, as 12390400 + 15792676 = 3520^2 + 3974^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28183079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207161 + ... + 207296.

It is an arithmetic number, because the mean of its divisors is an integer number (4351809).

Almost surely, 228183076 is an apocalyptic number.

It is an amenable number.

28183076 is a deficient number, since it is larger than the sum of its proper divisors (24038632).

28183076 is a wasteful number, since it uses less digits than its factorization.

28183076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414478 (or 414476 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 28183076 is about 5308.7734930019. The cubic root of 28183076 is about 304.3192773257.

The spelling of 28183076 in words is "twenty-eight million, one hundred eighty-three thousand, seventy-six".

Divisors: 1 2 4 17 34 68 414457 828914 1657828 7045769 14091538 28183076