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317103053 = 1931643021
BaseRepresentation
bin10010111001101…
…001101111001101
3211002200111121112
4102321221233031
51122134244203
651244341405
710600221461
oct2271515715
9732614545
10317103053
11152aa6243
128a244865
1350908757
14301864a1
151cc8b6d8
hex12e69bcd

317103053 has 4 divisors (see below), whose sum is σ = 318746268. Its totient is φ = 315459840.

The previous prime is 317103041. The next prime is 317103067. The reversal of 317103053 is 350301713.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 350301713 = 1667210139.

It can be written as a sum of positive squares in 2 ways, for example, as 182844484 + 134258569 = 13522^2 + 11587^2 .

It is a cyclic number.

It is not a de Polignac number, because 317103053 - 24 = 317103037 is a prime.

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 (317103013) 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, 821318 + ... + 821703.

It is an arithmetic number, because the mean of its divisors is an integer number (79686567).

Almost surely, 2317103053 is an apocalyptic number.

It is an amenable number.

317103053 is a deficient number, since it is larger than the sum of its proper divisors (1643215).

317103053 is a wasteful number, since it uses less digits than its factorization.

317103053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643214.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 317103053 is about 17807.3875961636. The cubic root of 317103053 is about 681.9200728766.

Adding to 317103053 its reverse (350301713), we get a palindrome (667404766).

The spelling of 317103053 in words is "three hundred seventeen million, one hundred three thousand, fifty-three".

Divisors: 1 193 1643021 317103053