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317320293 = 3571118521
BaseRepresentation
bin10010111010011…
…110110001100101
3211010002112121110
4102322132301211
51122213222133
651253135233
710602115023
oct2272366145
9733075543
10317320293
11153134484
128a32a519
13509835b4
1430201713
151ccd0c63
hex12e9ec65

317320293 has 8 divisors (see below), whose sum is σ = 423190656. Its totient is φ = 211498400.

The previous prime is 317320277. The next prime is 317320307. The reversal of 317320293 is 392023713.

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 317320293 - 24 = 317320277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317320293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317320243) 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, 7873 + ... + 26393.

It is an arithmetic number, because the mean of its divisors is an integer number (52898832).

Almost surely, 2317320293 is an apocalyptic number.

It is an amenable number.

317320293 is a deficient number, since it is larger than the sum of its proper divisors (105870363).

317320293 is a wasteful number, since it uses less digits than its factorization.

317320293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24235.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 317320293 is about 17813.4862674323. The cubic root of 317320293 is about 682.0757599095.

The spelling of 317320293 in words is "three hundred seventeen million, three hundred twenty thousand, two hundred ninety-three".

Divisors: 1 3 5711 17133 18521 55563 105773431 317320293