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313989306 = 2352331551
BaseRepresentation
bin10010101101110…
…001100010111010
3210212211022100120
4102231301202322
51120340124211
651053514110
710531602501
oct2255614272
9725738316
10313989306
111512698a4
12891a2936
13500883b7
142d9b5838
151c873d06
hex12b718ba

313989306 has 8 divisors (see below), whose sum is σ = 627978624. Its totient is φ = 104663100.

The previous prime is 313989283. The next prime is 313989323. The reversal of 313989306 is 603989313.

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

313989306 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26165770 + ... + 26165781.

It is an arithmetic number, because the mean of its divisors is an integer number (78497328).

Almost surely, 2313989306 is an apocalyptic number.

313989306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313989306 is a wasteful number, since it uses less digits than its factorization.

313989306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52331556.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 313989306 is about 17719.7433954332. The cubic root of 313989306 is about 679.6807223750.

It can be divided in two parts, 31398 and 9306, that added together give a palindrome (40704).

The spelling of 313989306 in words is "three hundred thirteen million, nine hundred eighty-nine thousand, three hundred six".

Divisors: 1 2 3 6 52331551 104663102 156994653 313989306