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317321946 = 23212721093
BaseRepresentation
bin10010111010011…
…111001011011010
3211010002121212200
4102322133023122
51122213300241
651253151030
710602122604
oct2272371332
9733077780
10317321946
11153135747
128a32b476
1350984286
1430202174
151ccd14b6
hex12e9f2da

317321946 has 36 divisors (see below), whose sum is σ = 693621162. Its totient is φ = 104845104.

The previous prime is 317321941. The next prime is 317321947. The reversal of 317321946 is 649123713.

317321946 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 177822225 + 139499721 = 13335^2 + 11811^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 317321946.

It is not an unprimeable number, because it can be changed into a prime (317321941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 289776 + ... + 290868.

Almost surely, 2317321946 is an apocalyptic number.

317321946 is an abundant number, since it is smaller than the sum of its proper divisors (376299216).

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

317321946 is a wasteful number, since it uses less digits than its factorization.

317321946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1225 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 317321946 is about 17813.5326648029. The cubic root of 317321946 is about 682.0769442746.

The spelling of 317321946 in words is "three hundred seventeen million, three hundred twenty-one thousand, nine hundred forty-six".

Divisors: 1 2 3 6 9 18 127 254 381 762 1093 1143 2186 2286 3279 6558 9837 16129 19674 32258 48387 96774 138811 145161 277622 290322 416433 832866 1249299 2498598 17628997 35257994 52886991 105773982 158660973 317321946