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2288025 = 325210169
BaseRepresentation
bin1000101110100110011001
311022020120200
420232212121
51041204100
6121012413
725306425
oct10564631
94266520
102288025
111323033
12924109
1362157c
14437b85
15302e00
hex22e999

2288025 has 18 divisors (see below), whose sum is σ = 4098510. Its totient is φ = 1220160.

The previous prime is 2288009. The next prime is 2288029. The reversal of 2288025 is 5208822.

2288025 = 2782 + 2792 + ... + 3042.

2288025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 553536 + 1734489 = 744^2 + 1317^2 .

It is not a de Polignac number, because 2288025 - 24 = 2288009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2288025.

It is not an unprimeable number, because it can be changed into a prime (2288029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4860 + ... + 5309.

It is an arithmetic number, because the mean of its divisors is an integer number (227695).

22288025 is an apocalyptic number.

2288025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2288025 is a deficient number, since it is larger than the sum of its proper divisors (1810485).

2288025 is a wasteful number, since it uses less digits than its factorization.

2288025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10185 (or 10177 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 2288025 is about 1512.6218959145. The cubic root of 2288025 is about 131.7711254227.

The spelling of 2288025 in words is "two million, two hundred eighty-eight thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 10169 30507 50845 91521 152535 254225 457605 762675 2288025