Search a number
259289 = 298941
BaseRepresentation
bin111111010011011001
3111011200022
4333103121
531244124
65320225
72126642
oct772331
9434608
10259289
11167898
12106075
1391034
146a6c9
1551c5e
hex3f4d9

259289 has 4 divisors (see below), whose sum is σ = 268260. Its totient is φ = 250320.

The previous prime is 259277. The next prime is 259309. The reversal of 259289 is 982952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153664 + 105625 = 392^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 259289 - 28 = 259033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 259289.

It is not an unprimeable number, because it can be changed into a prime (259219) 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, 4442 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (67065).

2259289 is an apocalyptic number.

259289 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

259289 is a deficient number, since it is larger than the sum of its proper divisors (8971).

259289 is an equidigital number, since it uses as much as digits as its factorization.

259289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970.

The product of its digits is 12960, while the sum is 35.

The square root of 259289 is about 509.2042812075. The cubic root of 259289 is about 63.7668108940.

The spelling of 259289 in words is "two hundred fifty-nine thousand, two hundred eighty-nine".

Divisors: 1 29 8941 259289