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317711252 = 221135711231
BaseRepresentation
bin10010111011111…
…110001110010100
3211010211101220102
4102323332032110
51122313230002
651305353232
710605333605
oct2273761624
9733741812
10317711252
11153381191
128a498818
1350a8c531
14302a3dac
151cd5ba02
hex12efe394

317711252 has 24 divisors (see below), whose sum is σ = 562353792. Its totient is φ = 157046400.

The previous prime is 317711239. The next prime is 317711263. The reversal of 317711252 is 252117713.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 257477 + ... + 258707.

It is an arithmetic number, because the mean of its divisors is an integer number (23431408).

Almost surely, 2317711252 is an apocalyptic number.

It is an amenable number.

317711252 is a deficient number, since it is larger than the sum of its proper divisors (244642540).

317711252 is a wasteful number, since it uses less digits than its factorization.

317711252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919 (or 1917 counting only the distinct ones).

The product of its digits is 2940, while the sum is 29.

The square root of 317711252 is about 17824.4565695563. The cubic root of 317711252 is about 682.3557653406.

Adding to 317711252 its reverse (252117713), we get a palindrome (569828965).

The spelling of 317711252 in words is "three hundred seventeen million, seven hundred eleven thousand, two hundred fifty-two".

Divisors: 1 2 4 113 226 452 571 1142 1231 2284 2462 4924 64523 129046 139103 258092 278206 556412 702901 1405802 2811604 79427813 158855626 317711252