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315042203 = 7197228457
BaseRepresentation
bin10010110001110…
…010100110011011
3210221210210122202
4102301302212123
51121122322303
651132240415
710543546250
oct2261624633
9727723582
10315042203
11151918963
128961010b
1350366708
142dbab427
151c9d0c88
hex12c7299b

315042203 has 8 divisors (see below), whose sum is σ = 361877472. Its totient is φ = 268664256.

The previous prime is 315042193. The next prime is 315042223. The reversal of 315042203 is 302240513.

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 315042203 - 26 = 315042139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315042223) 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, 112850 + ... + 115607.

It is an arithmetic number, because the mean of its divisors is an integer number (45234684).

Almost surely, 2315042203 is an apocalyptic number.

315042203 is a deficient number, since it is larger than the sum of its proper divisors (46835269).

315042203 is a wasteful number, since it uses less digits than its factorization.

315042203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228661.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 315042203 is about 17749.4282443125. The cubic root of 315042203 is about 680.4395968098.

Adding to 315042203 its reverse (302240513), we get a palindrome (617282716).

The spelling of 315042203 in words is "three hundred fifteen million, forty-two thousand, two hundred three".

Divisors: 1 7 197 1379 228457 1599199 45006029 315042203