Search a number
-
+
317712253 = 1497332909
BaseRepresentation
bin10010111011111…
…110011101111101
3211010211110021111
4102323332131331
51122313243003
651305402021
710605336535
oct2273763575
9733743244
10317712253
11153381a11
128a499311
1350a8cb21
14302a44c5
151cd5be6d
hex12efe77d

317712253 has 8 divisors (see below), whose sum is σ = 320391000. Its totient is φ = 315041088.

The previous prime is 317712247. The next prime is 317712257. The reversal of 317712253 is 352217713.

It can be written as a sum of positive squares in 4 ways, for example, as 131744484 + 185967769 = 11478^2 + 13637^2 .

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 317712253 - 25 = 317712221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317712257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107763 + ... + 110671.

It is an arithmetic number, because the mean of its divisors is an integer number (40048875).

Almost surely, 2317712253 is an apocalyptic number.

It is an amenable number.

317712253 is a deficient number, since it is larger than the sum of its proper divisors (2678747).

317712253 is a wasteful number, since it uses less digits than its factorization.

317712253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791.

The product of its digits is 8820, while the sum is 31.

The square root of 317712253 is about 17824.4846489316. The cubic root of 317712253 is about 682.3564819634.

Adding to 317712253 its reverse (352217713), we get a palindrome (669929966).

The spelling of 317712253 in words is "three hundred seventeen million, seven hundred twelve thousand, two hundred fifty-three".

Divisors: 1 149 733 2909 109217 433441 2132297 317712253