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317270507 = 1718662971
BaseRepresentation
bin10010111010010…
…010100111101011
3211010000000022112
4102322102213223
51122210124012
651252112535
710601516621
oct2272224753
9733000275
10317270507
11153100034
128a30574b
1350966a38
14301cb511
151ccc1122
hex12e929eb

317270507 has 4 divisors (see below), whose sum is σ = 335933496. Its totient is φ = 298607520.

The previous prime is 317270489. The next prime is 317270509. The reversal of 317270507 is 705072713.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 317270507 - 214 = 317254123 is a prime.

It is a super-2 number, since 2×3172705072 = 201321149224074098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317270509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9331469 + ... + 9331502.

It is an arithmetic number, because the mean of its divisors is an integer number (83983374).

Almost surely, 2317270507 is an apocalyptic number.

317270507 is a deficient number, since it is larger than the sum of its proper divisors (18662989).

317270507 is a wasteful number, since it uses less digits than its factorization.

317270507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18662988.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 317270507 is about 17812.0887882359. The cubic root of 317270507 is about 682.0400865949.

The spelling of 317270507 in words is "three hundred seventeen million, two hundred seventy thousand, five hundred seven".

Divisors: 1 17 18662971 317270507