Base | Representation |
---|---|
bin | 100110101111… |
… | …0011111111011 |
3 | 1102012212002122 |
4 | 1031132133323 |
5 | 20144410021 |
6 | 2003151455 |
7 | 334426601 |
oct | 115363773 |
9 | 42185078 |
10 | 20310011 |
11 | 10512237 |
12 | 697558b |
13 | 4291577 |
14 | 29a9871 |
15 | 1bb2bab |
hex | 135e7fb |
20310011 has 4 divisors (see below), whose sum is σ = 20643024. Its totient is φ = 19977000.
The previous prime is 20310007. The next prime is 20310023. The reversal of 20310011 is 11001302.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 20310011 - 22 = 20310007 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20310001) 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, 166415 + ... + 166536.
It is an arithmetic number, because the mean of its divisors is an integer number (5160756).
Almost surely, 220310011 is an apocalyptic number.
20310011 is a deficient number, since it is larger than the sum of its proper divisors (333013).
20310011 is an equidigital number, since it uses as much as digits as its factorization.
20310011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 333012.
The product of its (nonzero) digits is 6, while the sum is 8.
The square root of 20310011 is about 4506.6629561129. The cubic root of 20310011 is about 272.8370757895.
Adding to 20310011 its reverse (11001302), we get a palindrome (31311313).
The spelling of 20310011 in words is "twenty million, three hundred ten thousand, eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •