Search a number
-
+
289379 = 472131
BaseRepresentation
bin1000110101001100011
3112200221202
41012221203
533230004
610111415
72313446
oct1065143
9480852
10289379
11188462
1211b56b
13a193c
147765d
155ab1e
hex46a63

289379 has 6 divisors (see below), whose sum is σ = 297924. Its totient is φ = 281060.

The previous prime is 289369. The next prime is 289381. The reversal of 289379 is 973982.

It is not a de Polignac number, because 289379 - 212 = 285283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289309) 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, 2144 + ... + 2274.

It is an arithmetic number, because the mean of its divisors is an integer number (49654).

2289379 is an apocalyptic number.

289379 is a deficient number, since it is larger than the sum of its proper divisors (8545).

289379 is an equidigital number, since it uses as much as digits as its factorization.

289379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 178 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 289379 is about 537.9395876862. The cubic root of 289379 is about 66.1437789939.

The spelling of 289379 in words is "two hundred eighty-nine thousand, three hundred seventy-nine".

Divisors: 1 47 131 2209 6157 289379