Base | Representation |
---|---|
bin | 10000001101110001… |
… | …00010101110111011 |
3 | 211110200210011112002 |
4 | 20012320202232323 |
5 | 120312041421334 |
6 | 3555455211215 |
7 | 425504564606 |
oct | 100670425673 |
9 | 24420704462 |
10 | 8705420219 |
11 | 3767a8a071 |
12 | 182b516b0b |
13 | a8972c632 |
14 | 5c825333d |
15 | 35e3ddb7e |
hex | 206e22bbb |
8705420219 has 8 divisors (see below), whose sum is σ = 8914194432. Its totient is φ = 8496933480.
The previous prime is 8705420203. The next prime is 8705420237. The reversal of 8705420219 is 9120245078.
8705420219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 8705420219 - 24 = 8705420203 is a prime.
It is a super-2 number, since 2×87054202192 (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 (8705420239) 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 7 ways as a sum of consecutive naturals, for example, 9947 + ... + 132324.
It is an arithmetic number, because the mean of its divisors is an integer number (1114274304).
Almost surely, 28705420219 is an apocalyptic number.
8705420219 is a deficient number, since it is larger than the sum of its proper divisors (208774213).
8705420219 is a wasteful number, since it uses less digits than its factorization.
8705420219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 143737.
The product of its (nonzero) digits is 40320, while the sum is 38.
The square root of 8705420219 is about 93302.8414304731. The cubic root of 8705420219 is about 2057.1371470477.
The spelling of 8705420219 in words is "eight billion, seven hundred five million, four hundred twenty thousand, two hundred nineteen".
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