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313204689 = 32712374019
BaseRepresentation
bin10010101010110…
…001111111010001
3210211100110001200
4102222301333101
51120140022224
651025021413
710522124130
oct2252617721
9724313050
10313204689
11150883356
1288a84869
134cb72225
142d84d917
151c76b5c9
hex12ab1fd1

313204689 has 24 divisors (see below), whose sum is σ = 517583040. Its totient is φ = 178784928.

The previous prime is 313204681. The next prime is 313204691. The reversal of 313204689 is 986402313.

It is not a de Polignac number, because 313204689 - 23 = 313204681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313204681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75922 + ... + 79940.

It is an arithmetic number, because the mean of its divisors is an integer number (21565960).

Almost surely, 2313204689 is an apocalyptic number.

It is an amenable number.

313204689 is a deficient number, since it is larger than the sum of its proper divisors (204378351).

313204689 is a wasteful number, since it uses less digits than its factorization.

313204689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269 (or 5266 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 313204689 is about 17697.5899206643. The cubic root of 313204689 is about 679.1141066096.

The spelling of 313204689 in words is "three hundred thirteen million, two hundred four thousand, six hundred eighty-nine".

Divisors: 1 3 7 9 21 63 1237 3711 4019 8659 11133 12057 25977 28133 36171 77931 84399 253197 4971503 14914509 34800521 44743527 104401563 313204689