Base | Representation |
---|---|
bin | 100110000100… |
… | …101011111010 |
3 | 200210001220022 |
4 | 212010223322 |
5 | 10023340131 |
6 | 553530442 |
7 | 150556103 |
oct | 46045372 |
9 | 20701808 |
10 | 9980666 |
11 | 56a7693 |
12 | 3413a22 |
13 | 20b5b27 |
14 | 147b3aa |
15 | d2237b |
hex | 984afa |
9980666 has 16 divisors (see below), whose sum is σ = 16542144. Its totient is φ = 4492224.
The previous prime is 9980629. The next prime is 9980693. The reversal of 9980666 is 6660899.
9980666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-4 number, since 4×99806664 (a number of 29 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5600 + ... + 7163.
It is an arithmetic number, because the mean of its divisors is an integer number (1033884).
Almost surely, 29980666 is an apocalyptic number.
9980666 is a deficient number, since it is larger than the sum of its proper divisors (6561478).
9980666 is a wasteful number, since it uses less digits than its factorization.
9980666 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12805.
The product of its (nonzero) digits is 139968, while the sum is 44.
The square root of 9980666 is about 3159.2192073359. The cubic root of 9980666 is about 215.3045332909.
The spelling of 9980666 in words is "nine million, nine hundred eighty thousand, six hundred sixty-six".
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