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25284833 = 72516017
BaseRepresentation
bin110000001110…
…1000011100001
31202120121021022
41200131003201
522433103313
62301535225
7424626500
oct140350341
952517238
1025284833
11132aa962
128574515
135313a52
143502837
152346c08
hex181d0e1

25284833 has 6 divisors (see below), whose sum is σ = 29413026. Its totient is φ = 21672672.

The previous prime is 25284821. The next prime is 25284841. The reversal of 25284833 is 33848252.

It can be written as a sum of positive squares in only one way, i.e., 17405584 + 7879249 = 4172^2 + 2807^2 .

It is not a de Polignac number, because 25284833 - 26 = 25284769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25284793 and 25284802.

It is not an unprimeable number, because it can be changed into a prime (25224833) 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, 257960 + ... + 258057.

It is an arithmetic number, because the mean of its divisors is an integer number (4902171).

Almost surely, 225284833 is an apocalyptic number.

It is an amenable number.

25284833 is a deficient number, since it is larger than the sum of its proper divisors (4128193).

25284833 is an equidigital number, since it uses as much as digits as its factorization.

25284833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516031 (or 516024 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 25284833 is about 5028.4026290662. The cubic root of 25284833 is about 293.5080586387.

The spelling of 25284833 in words is "twenty-five million, two hundred eighty-four thousand, eight hundred thirty-three".

Divisors: 1 7 49 516017 3612119 25284833