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317950049 = 3173732689
BaseRepresentation
bin10010111100111…
…000100001100001
3211011021112110202
4102330320201201
51122343400144
651314434545
710610350034
oct2274704141
9734245422
10317950049
1115352463a
128a592a55
1350b44131
143032701b
151cda764e
hex12f38861

317950049 has 8 divisors (see below), whose sum is σ = 319927080. Its totient is φ = 315979776.

The previous prime is 317950037. The next prime is 317950051. The reversal of 317950049 is 940059713.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7661824 + 310288225 = 2768^2 + 17615^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 317950049 - 24 = 317950033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317949994 and 317950021.

It is not an unprimeable number, because it can be changed into a prime (317950019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116897 + ... + 119585.

It is an arithmetic number, because the mean of its divisors is an integer number (39990885).

Almost surely, 2317950049 is an apocalyptic number.

It is an amenable number.

317950049 is a deficient number, since it is larger than the sum of its proper divisors (1977031).

317950049 is a wasteful number, since it uses less digits than its factorization.

317950049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 317950049 is about 17831.1538886299. The cubic root of 317950049 is about 682.5266791308.

The spelling of 317950049 in words is "three hundred seventeen million, nine hundred fifty thousand, forty-nine".

Divisors: 1 317 373 2689 118241 852413 1002997 317950049