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297013 = 2291297
BaseRepresentation
bin1001000100000110101
3120002102111
41020200311
534001023
610211021
72344633
oct1104065
9502374
10297013
11193172
12123a71
13a5262
147a353
155d00d
hex48835

297013 has 4 divisors (see below), whose sum is σ = 298540. Its totient is φ = 295488.

The previous prime is 296987. The next prime is 297019. The reversal of 297013 is 310792.

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 289444 + 7569 = 538^2 + 87^2 .

It is a cyclic number.

It is not a de Polignac number, because 297013 - 25 = 296981 is a prime.

It is a Duffinian number.

297013 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420 + ... + 877.

It is an arithmetic number, because the mean of its divisors is an integer number (74635).

2297013 is an apocalyptic number.

It is an amenable number.

297013 is a deficient number, since it is larger than the sum of its proper divisors (1527).

297013 is a wasteful number, since it uses less digits than its factorization.

297013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 297013 is about 544.9889907145. The cubic root of 297013 is about 66.7203761622.

The spelling of 297013 in words is "two hundred ninety-seven thousand, thirteen".

Divisors: 1 229 1297 297013