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315233243 = 1385928229
BaseRepresentation
bin10010110010100…
…001001111011011
3210222011111201022
4102302201033123
51121144430433
651140313055
710545303233
oct2262411733
9728144638
10315233243
11151a39446
12896a278b
1350402660
142dc1acc3
151ca1c698
hex12ca13db

315233243 has 8 divisors (see below), whose sum is σ = 339889200. Its totient is φ = 290635488.

The previous prime is 315233231. The next prime is 315233263. The reversal of 315233243 is 342332513.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 315233243 - 226 = 248124379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315233213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2948 + ... + 25281.

It is an arithmetic number, because the mean of its divisors is an integer number (42486150).

Almost surely, 2315233243 is an apocalyptic number.

315233243 is a deficient number, since it is larger than the sum of its proper divisors (24655957).

315233243 is a wasteful number, since it uses less digits than its factorization.

315233243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29101.

The product of its digits is 6480, while the sum is 26.

The square root of 315233243 is about 17754.8090105188. The cubic root of 315233243 is about 680.5771073960.

Adding to 315233243 its reverse (342332513), we get a palindrome (657565756).

The spelling of 315233243 in words is "three hundred fifteen million, two hundred thirty-three thousand, two hundred forty-three".

Divisors: 1 13 859 11167 28229 366977 24248711 315233243