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316323253 = 2549124097
BaseRepresentation
bin10010110110101…
…011010110110101
3211001012212221001
4102312223112311
51121434321003
651215523301
710560463141
oct2266532665
9731185831
10316323253
11152613384
1289b29531
13506c482c
1430022221
151cb8561d
hex12dab5b5

316323253 has 4 divisors (see below), whose sum is σ = 316449900. Its totient is φ = 316196608.

The previous prime is 316323223. The next prime is 316323257. The reversal of 316323253 is 352323613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352323613 = 2571370909.

It can be written as a sum of positive squares in 2 ways, for example, as 181252369 + 135070884 = 13463^2 + 11622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-316323253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316323257) 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, 59500 + ... + 64597.

It is an arithmetic number, because the mean of its divisors is an integer number (79112475).

Almost surely, 2316323253 is an apocalyptic number.

It is an amenable number.

316323253 is a deficient number, since it is larger than the sum of its proper divisors (126647).

316323253 is a wasteful number, since it uses less digits than its factorization.

316323253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126646.

The product of its digits is 9720, while the sum is 28.

The square root of 316323253 is about 17785.4787115782. The cubic root of 316323253 is about 681.3606356467.

Adding to 316323253 its reverse (352323613), we get a palindrome (668646866).

The spelling of 316323253 in words is "three hundred sixteen million, three hundred twenty-three thousand, two hundred fifty-three".

Divisors: 1 2549 124097 316323253