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315223413 = 3105074471
BaseRepresentation
bin10010110010011…
…110110101110101
3210222011000020020
4102302132311311
51121144122123
651140155353
710545232461
oct2262366565
9728130206
10315223413
11151a3201a
1289698b59
13503cb03b
142dc174a1
151ca197e3
hex12c9ed75

315223413 has 4 divisors (see below), whose sum is σ = 420297888. Its totient is φ = 210148940.

The previous prime is 315223379. The next prime is 315223453. The reversal of 315223413 is 314322513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315223413 - 222 = 311029109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315223453) 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, 52537233 + ... + 52537238.

It is an arithmetic number, because the mean of its divisors is an integer number (105074472).

Almost surely, 2315223413 is an apocalyptic number.

It is an amenable number.

315223413 is a deficient number, since it is larger than the sum of its proper divisors (105074475).

315223413 is a wasteful number, since it uses less digits than its factorization.

315223413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105074474.

The product of its digits is 2160, while the sum is 24.

The square root of 315223413 is about 17754.5321819529. The cubic root of 315223413 is about 680.5700331183.

Adding to 315223413 its reverse (314322513), we get a palindrome (629545926).

It can be divided in two parts, 3152 and 23413, that added together give a triangular number (26565 = T230).

The spelling of 315223413 in words is "three hundred fifteen million, two hundred twenty-three thousand, four hundred thirteen".

Divisors: 1 3 105074471 315223413