Base | Representation |
---|---|
bin | 111011110010001… |
… | …0101000000001011 |
3 | 12011210122222000121 |
4 | 1313210111000023 |
5 | 13102014340130 |
6 | 531015444111 |
7 | 100465551145 |
oct | 16744250013 |
9 | 5153588017 |
10 | 2006011915 |
11 | 93a383496 |
12 | 47b986637 |
13 | 25c7a08cb |
14 | 1505c1c95 |
15 | bb19dd7a |
hex | 7791500b |
2006011915 has 4 divisors (see below), whose sum is σ = 2407214304. Its totient is φ = 1604809528.
The previous prime is 2006011913. The next prime is 2006011933. The reversal of 2006011915 is 5191106002.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5191106002 = 2 ⋅2595553001.
It is a cyclic number.
It is not a de Polignac number, because 2006011915 - 21 = 2006011913 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 2006011915.
It is not an unprimeable number, because it can be changed into a prime (2006011913) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200601187 + ... + 200601196.
It is an arithmetic number, because the mean of its divisors is an integer number (601803576).
Almost surely, 22006011915 is an apocalyptic number.
2006011915 is a deficient number, since it is larger than the sum of its proper divisors (401202389).
2006011915 is an equidigital number, since it uses as much as digits as its factorization.
2006011915 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 401202388.
The product of its (nonzero) digits is 540, while the sum is 25.
The square root of 2006011915 is about 44788.5243672975. The cubic root of 2006011915 is about 1261.1822101162.
Adding to 2006011915 its reverse (5191106002), we get a palindrome (7197117917).
The spelling of 2006011915 in words is "two billion, six million, eleven thousand, nine hundred fifteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •