Base | Representation |
---|---|
bin | 10000011010001001… |
… | …01111011101011001 |
3 | 211201221012212020100 |
4 | 20031010233131121 |
5 | 121020134000434 |
6 | 4014045250013 |
7 | 431205441030 |
oct | 101504573531 |
9 | 24657185210 |
10 | 8809281369 |
11 | 3810678529 |
12 | 185a263909 |
13 | aa50c5735 |
14 | 5d7d6b717 |
15 | 3685a7699 |
hex | 20d12f759 |
8809281369 has 12 divisors (see below), whose sum is σ = 14542305856. Its totient is φ = 5033875032.
The previous prime is 8809281347. The next prime is 8809281401. The reversal of 8809281369 is 9631829088.
It is a happy number.
8809281369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 8809281369 - 220 = 8808232793 is a prime.
It is a super-2 number, since 2×88092813692 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (8809280369) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69914869 + ... + 69914994.
Almost surely, 28809281369 is an apocalyptic number.
It is an amenable number.
8809281369 is a deficient number, since it is larger than the sum of its proper divisors (5733024487).
8809281369 is a wasteful number, since it uses less digits than its factorization.
8809281369 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139829876 (or 139829873 counting only the distinct ones).
The product of its (nonzero) digits is 1492992, while the sum is 54.
The square root of 8809281369 is about 93857.7720223531. The cubic root of 8809281369 is about 2065.2858071462.
The spelling of 8809281369 in words is "eight billion, eight hundred nine million, two hundred eighty-one thousand, three hundred sixty-nine".
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