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289741 is a prime number
BaseRepresentation
bin1000110101111001101
3112201110011
41012233031
533232431
610113221
72314504
oct1065715
9481404
10289741
11188761
1211b811
13a1b5a
147783b
155acb1
hex46bcd

289741 has 2 divisors, whose sum is σ = 289742. Its totient is φ = 289740.

The previous prime is 289733. The next prime is 289759. The reversal of 289741 is 147982.

289741 = T438 + T439 + T440.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152100 + 137641 = 390^2 + 371^2 .

It is a cyclic number.

It is not a de Polignac number, because 289741 - 23 = 289733 is a prime.

It is a Chen prime.

289741 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289721) 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 as a sum of consecutive naturals, namely, 144870 + 144871.

It is an arithmetic number, because the mean of its divisors is an integer number (144871).

2289741 is an apocalyptic number.

289741 is the 440-th centered triangular number.

It is an amenable number.

289741 is a deficient number, since it is larger than the sum of its proper divisors (1).

289741 is an equidigital number, since it uses as much as digits as its factorization.

289741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 289741 is about 538.2759515342. The cubic root of 289741 is about 66.1713484566.

The spelling of 289741 in words is "two hundred eighty-nine thousand, seven hundred forty-one".