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289351 = 1997157
BaseRepresentation
bin1000110101001000111
3112200220201
41012221013
533224401
610111331
72313406
oct1065107
9480821
10289351
11188437
1211b547
13a191a
147763d
155ab01
hex46a47

289351 has 8 divisors (see below), whose sum is σ = 309680. Its totient is φ = 269568.

The previous prime is 289349. The next prime is 289361. The reversal of 289351 is 153982.

289351 is nontrivially palindromic in base 13.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 289351 - 21 = 289349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1765 + ... + 1921.

It is an arithmetic number, because the mean of its divisors is an integer number (38710).

2289351 is an apocalyptic number.

289351 is a deficient number, since it is larger than the sum of its proper divisors (20329).

289351 is a wasteful number, since it uses less digits than its factorization.

289351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273.

The product of its digits is 2160, while the sum is 28.

The square root of 289351 is about 537.9135618294. The cubic root of 289351 is about 66.1416455915.

The spelling of 289351 in words is "two hundred eighty-nine thousand, three hundred fifty-one".

Divisors: 1 19 97 157 1843 2983 15229 289351