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317323469 = 3131013813
BaseRepresentation
bin10010111010011…
…111100011001101
3211010002200222002
4102322133203031
51122213322334
651253202045
710602130211
oct2272374315
9733080862
10317323469
11153136901
128a330325
1350984b88
1430202941
151ccd1b7e
hex12e9f8cd

317323469 has 4 divisors (see below), whose sum is σ = 318337596. Its totient is φ = 316309344.

The previous prime is 317323421. The next prime is 317323511. The reversal of 317323469 is 964323713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964323713 = 3881248473.

It can be written as a sum of positive squares in 2 ways, for example, as 103286569 + 214036900 = 10163^2 + 14630^2 .

It is a cyclic number.

It is not a de Polignac number, because 317323469 - 216 = 317257933 is a prime.

It is a super-2 number, since 2×3173234692 = 201388367956387922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317223469) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 506594 + ... + 507219.

It is an arithmetic number, because the mean of its divisors is an integer number (79584399).

Almost surely, 2317323469 is an apocalyptic number.

It is an amenable number.

317323469 is a deficient number, since it is larger than the sum of its proper divisors (1014127).

317323469 is a wasteful number, since it uses less digits than its factorization.

317323469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014126.

The product of its digits is 81648, while the sum is 38.

The square root of 317323469 is about 17813.5754131505. The cubic root of 317323469 is about 682.0780354918.

The spelling of 317323469 in words is "three hundred seventeen million, three hundred twenty-three thousand, four hundred sixty-nine".

Divisors: 1 313 1013813 317323469