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288425 = 5283139
BaseRepresentation
bin1000110011010101001
3112122122102
41012122221
533212200
610103145
72310614
oct1063251
9478572
10288425
11187775
1211aab5
13a1387
147717b
155a6d5
hex466a9

288425 has 12 divisors (see below), whose sum is σ = 364560. Its totient is φ = 226320.

The previous prime is 288413. The next prime is 288427. The reversal of 288425 is 524882.

It is not a de Polignac number, because 288425 - 26 = 288361 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 288425.

It is not an unprimeable number, because it can be changed into a prime (288427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2006 + ... + 2144.

It is an arithmetic number, because the mean of its divisors is an integer number (30380).

2288425 is an apocalyptic number.

288425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

288425 is a deficient number, since it is larger than the sum of its proper divisors (76135).

288425 is a wasteful number, since it uses less digits than its factorization.

288425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 227 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 288425 is about 537.0521389958. The cubic root of 288425 is about 66.0710132500.

The spelling of 288425 in words is "two hundred eighty-eight thousand, four hundred twenty-five".

Divisors: 1 5 25 83 139 415 695 2075 3475 11537 57685 288425