Base | Representation |
---|---|
bin | 11100001111000010… |
… | …111111110100011101 |
3 | 2220020212012002120000 |
4 | 130033002333310131 |
5 | 444042201340010 |
6 | 21532203044513 |
7 | 2122201034640 |
oct | 341702776435 |
9 | 86225162500 |
10 | 30317215005 |
11 | 119483063a0 |
12 | 5a61210739 |
13 | 2b2200c79c |
14 | 167861da57 |
15 | bc68d87c0 |
hex | 70f0bfd1d |
30317215005 has 240 divisors, whose sum is σ = 71536950144. Its totient is φ = 11931805440.
The previous prime is 30317214997. The next prime is 30317215007. The reversal of 30317215005 is 50051271303.
It is not a de Polignac number, because 30317215005 - 23 = 30317214997 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a self number, because there is not a number n which added to its sum of digits gives 30317215005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30317215007) by changing a digit.
It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 11256439 + ... + 11259131.
Almost surely, 230317215005 is an apocalyptic number.
30317215005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30317215005 is an abundant number, since it is smaller than the sum of its proper divisors (41219735139).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30317215005 is a wasteful number, since it uses less digits than its factorization.
30317215005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2766 (or 2738 counting only the distinct ones).
The product of its (nonzero) digits is 3150, while the sum is 27.
Adding to 30317215005 its reverse (50051271303), we get a palindrome (80368486308).
The spelling of 30317215005 in words is "thirty billion, three hundred seventeen million, two hundred fifteen thousand, five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •