Base | Representation |
---|---|
bin | 110000000000100… |
… | …111111111001011 |
3 | 2002010122010022222 |
4 | 300000213333023 |
5 | 3122200021110 |
6 | 211532004255 |
7 | 25650245330 |
oct | 6000477713 |
9 | 2063563288 |
10 | 805470155 |
11 | 383737716 |
12 | 1a590068b |
13 | cab49979 |
14 | 78d90987 |
15 | 4aaa7c55 |
hex | 30027fcb |
805470155 has 8 divisors (see below), whose sum is σ = 1104644832. Its totient is φ = 552322368.
The previous prime is 805470119. The next prime is 805470163. The reversal of 805470155 is 551074508.
805470155 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 805470155 - 214 = 805453771 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 23013433 = 805470155 / (8 + 0 + 5 + 4 + 7 + 0 + 1 + 5 + 5).
It is a Duffinian number.
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, 11506682 + ... + 11506751.
It is an arithmetic number, because the mean of its divisors is an integer number (138080604).
Almost surely, 2805470155 is an apocalyptic number.
805470155 is a deficient number, since it is larger than the sum of its proper divisors (299174677).
805470155 is a wasteful number, since it uses less digits than its factorization.
805470155 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23013445.
The product of its (nonzero) digits is 28000, while the sum is 35.
The square root of 805470155 is about 28380.8061020120. The cubic root of 805470155 is about 930.4288133093.
The spelling of 805470155 in words is "eight hundred five million, four hundred seventy thousand, one hundred fifty-five".
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