Search a number
-
+
315013213 = 17591272473
BaseRepresentation
bin10010110001101…
…011100001011101
3210221202022220001
4102301223201131
51121120410323
651131454301
710543365604
oct2261534135
9727668801
10315013213
111518a90a9
12895b7391
1350356468
142dba0a3b
151c9c73ad
hex12c6b85d

315013213 has 16 divisors (see below), whose sum is σ = 342005760. Its totient is φ = 289046016.

The previous prime is 315013201. The next prime is 315013229. The reversal of 315013213 is 312310513.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-315013213 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 (315013253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126145 + ... + 128617.

It is an arithmetic number, because the mean of its divisors is an integer number (21375360).

Almost surely, 2315013213 is an apocalyptic number.

It is an amenable number.

315013213 is a deficient number, since it is larger than the sum of its proper divisors (26992547).

315013213 is a wasteful number, since it uses less digits than its factorization.

315013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 315013213 is about 17748.6115795011. The cubic root of 315013213 is about 680.4187249511.

Adding to 315013213 its reverse (312310513), we get a palindrome (627323726).

The spelling of 315013213 in words is "three hundred fifteen million, thirteen thousand, two hundred thirteen".

Divisors: 1 17 59 127 1003 2159 2473 7493 42041 127381 145907 314071 2480419 5339207 18530189 315013213