Base | Representation |
---|---|
bin | 10010101100110111… |
… | …111010011010001001 |
3 | 1220211102110020020210 |
4 | 102230313322122021 |
5 | 312111013114442 |
6 | 13120312311333 |
7 | 1310414643000 |
oct | 225467723211 |
9 | 56742406223 |
10 | 20080207497 |
11 | 8574832109 |
12 | 3a849a2549 |
13 | 1b801ab5ac |
14 | d86c03c37 |
15 | 7c7d1119c |
hex | 4acdfa689 |
20080207497 has 16 divisors (see below), whose sum is σ = 31222870400. Its totient is φ = 11474403696.
The previous prime is 20080207493. The next prime is 20080207529. The reversal of 20080207497 is 79470208002.
It is not a de Polignac number, because 20080207497 - 22 = 20080207493 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20080207493) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9756118 + ... + 9758175.
It is an arithmetic number, because the mean of its divisors is an integer number (1951429400).
Almost surely, 220080207497 is an apocalyptic number.
It is an amenable number.
20080207497 is a deficient number, since it is larger than the sum of its proper divisors (11142662903).
20080207497 is an equidigital number, since it uses as much as digits as its factorization.
20080207497 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 19514317 (or 19514303 counting only the distinct ones).
The product of its (nonzero) digits is 56448, while the sum is 39.
The spelling of 20080207497 in words is "twenty billion, eighty million, two hundred seven thousand, four hundred ninety-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •