Base | Representation |
---|---|
bin | 1001100010011… |
… | …00100001011011 |
3 | 12120112200111222 |
4 | 10301030201123 |
5 | 130440131321 |
6 | 11534442255 |
7 | 1661014226 |
oct | 461144133 |
9 | 176480458 |
10 | 80005211 |
11 | 41185110 |
12 | 2296338b |
13 | 13762880 |
14 | a8a85bd |
15 | 70553ab |
hex | 4c4c85b |
80005211 has 16 divisors (see below), whose sum is σ = 96538848. Its totient is φ = 65318400.
The previous prime is 80005207. The next prime is 80005223. The reversal of 80005211 is 11250008.
It is a cyclic number.
It is not a de Polignac number, because 80005211 - 22 = 80005207 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 80005211.
It is not an unprimeable number, because it can be changed into a prime (80005511) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2270 + ... + 12851.
It is an arithmetic number, because the mean of its divisors is an integer number (6033678).
Almost surely, 280005211 is an apocalyptic number.
80005211 is a deficient number, since it is larger than the sum of its proper divisors (16533637).
80005211 is a wasteful number, since it uses less digits than its factorization.
80005211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15182.
The product of its (nonzero) digits is 80, while the sum is 17.
The square root of 80005211 is about 8944.5632090114. The cubic root of 80005211 is about 430.8962934359.
Adding to 80005211 its reverse (11250008), we get a palindrome (91255219).
The spelling of 80005211 in words is "eighty million, five thousand, two hundred eleven".
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