Base | Representation |
---|---|
bin | 10000101111110… |
… | …011110000001001 |
3 | 201120200122220200 |
4 | 100233303300021 |
5 | 1033411440301 |
6 | 43514042413 |
7 | 6651122163 |
oct | 2057636011 |
9 | 646618820 |
10 | 280968201 |
11 | 134665628 |
12 | 7a119409 |
13 | 46296297 |
14 | 2945b933 |
15 | 199eec86 |
hex | 10bf3c09 |
280968201 has 12 divisors (see below), whose sum is σ = 406439280. Its totient is φ = 187036920.
The previous prime is 280968199. The next prime is 280968277. The reversal of 280968201 is 102869082.
It is not a de Polignac number, because 280968201 - 21 = 280968199 is a prime.
It is not an unprimeable number, because it can be changed into a prime (280968301) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16371 + ... + 28808.
It is an arithmetic number, because the mean of its divisors is an integer number (33869940).
Almost surely, 2280968201 is an apocalyptic number.
It is an amenable number.
280968201 is a deficient number, since it is larger than the sum of its proper divisors (125471079).
280968201 is a wasteful number, since it uses less digits than its factorization.
280968201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45876 (or 45873 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 36.
The square root of 280968201 is about 16762.1061027545. The cubic root of 280968201 is about 654.9664540052.
The spelling of 280968201 in words is "two hundred eighty million, nine hundred sixty-eight thousand, two hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •