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6315213431 = 172316151441
BaseRepresentation
bin1011110000110101…
…01000001001110111
3121022010012002012202
411320122220021313
5100413143312211
62522352535115
7312332266652
oct57032501167
917263162182
106315213431
11275085635a
121282b5149b
137984923a7
1443ca22899
1526e64e53b
hex1786a8277

6315213431 has 8 divisors (see below), whose sum is σ = 6977422944. Its totient is φ = 5685306880.

The previous prime is 6315213427. The next prime is 6315213433. The reversal of 6315213431 is 1343125136.

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

It is a cyclic number.

It is not a de Polignac number, because 6315213431 - 22 = 6315213427 is a prime.

It is a super-2 number, since 2×63152134312 = 79763841358165583522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6315213394 and 6315213403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6315213433) 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 7 ways as a sum of consecutive naturals, for example, 8075330 + ... + 8076111.

It is an arithmetic number, because the mean of its divisors is an integer number (872177868).

Almost surely, 26315213431 is an apocalyptic number.

6315213431 is a deficient number, since it is larger than the sum of its proper divisors (662209513).

6315213431 is a wasteful number, since it uses less digits than its factorization.

6315213431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16151481.

The product of its digits is 6480, while the sum is 29.

The square root of 6315213431 is about 79468.3171521834. The cubic root of 6315213431 is about 1848.4002172830.

Adding to 6315213431 its reverse (1343125136), we get a palindrome (7658338567).

The spelling of 6315213431 in words is "six billion, three hundred fifteen million, two hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 17 23 391 16151441 274574497 371483143 6315213431