Base | Representation |
---|---|
bin | 111110000001101010… |
… | …110101110111100111 |
3 | 20100220110122121001200 |
4 | 332001222311313213 |
5 | 2042344100012444 |
6 | 50332353053543 |
7 | 4545260445060 |
oct | 760152656747 |
9 | 210813577050 |
10 | 66600000999 |
11 | 26276a67544 |
12 | 10aa82572b3 |
13 | 6384c2211c |
14 | 331b249567 |
15 | 1aebda8969 |
hex | f81ab5de7 |
66600000999 has 96 divisors (see below), whose sum is σ = 117107687424. Its totient is φ = 35664779520.
The previous prime is 66600000941. The next prime is 66600001001. The reversal of 66600000999 is 99900000666.
It is not a de Polignac number, because 66600000999 - 211 = 66599998951 is a prime.
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
66600000999 is a strobogrammatic number because it is the same when read upside-down.
66600000999 is a modest number, since divided by 999 gives 666 as remainder.
It is a zygodrome in base 10.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (66600008999) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16112137 + ... + 16116269.
It is an arithmetic number, because the mean of its divisors is an integer number (1219871744).
Almost surely, 266600000999 is an apocalyptic number.
66600000999 is a deficient number, since it is larger than the sum of its proper divisors (50507686425).
66600000999 is a wasteful number, since it uses less digits than its factorization.
66600000999 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4437 (or 4434 counting only the distinct ones).
The product of its (nonzero) digits is 157464, while the sum is 45.
The spelling of 66600000999 in words is "sixty-six billion, six hundred million, nine hundred ninety-nine", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •