Base | Representation |
---|---|
bin | 1000001100011111… |
… | …0010101010010000 |
3 | 12200022102100121010 |
4 | 2003013302222100 |
5 | 14001130422213 |
6 | 1002142330520 |
7 | 105341324421 |
oct | 20307625220 |
9 | 5608370533 |
10 | 2199857808 |
11 | a29842805 |
12 | 514889a40 |
13 | 2909b1a15 |
14 | 16c241648 |
15 | cd1deac3 |
hex | 831f2a90 |
2199857808 has 20 divisors (see below), whose sum is σ = 5682966128. Its totient is φ = 733285920.
The previous prime is 2199857801. The next prime is 2199857809. The reversal of 2199857808 is 8087589912.
It is not an unprimeable number, because it can be changed into a prime (2199857801) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22915138 + ... + 22915233.
Almost surely, 22199857808 is an apocalyptic number.
It is an amenable number.
2199857808 is an abundant number, since it is smaller than the sum of its proper divisors (3483108320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2199857808 is a wasteful number, since it uses less digits than its factorization.
2199857808 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45830382 (or 45830376 counting only the distinct ones).
The product of its (nonzero) digits is 2903040, while the sum is 57.
The square root of 2199857808 is about 46902.6418019284. The cubic root of 2199857808 is about 1300.5634259903.
The spelling of 2199857808 in words is "two billion, one hundred ninety-nine million, eight hundred fifty-seven thousand, eight hundred eight".
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