Base | Representation |
---|---|
bin | 1000010011010000001… |
… | …11111001100111110001 |
3 | 1000021012002212011002221 |
4 | 10021220013321213301 |
5 | 14133104433234100 |
6 | 335005325441041 |
7 | 26414613213022 |
oct | 4115007714761 |
9 | 1007162764087 |
10 | 285214743025 |
11 | aaa60317963 |
12 | 47339a10181 |
13 | 20b8492c544 |
14 | db3965ac49 |
15 | 764466701a |
hex | 42681f99f1 |
285214743025 has 81 divisors (see below), whose sum is σ = 385698114243. Its totient is φ = 209178662400.
The previous prime is 285214742999. The next prime is 285214743061. The reversal of 285214743025 is 520347412582.
The square root of 285214743025 is 534055.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in 13 ways, for example, as 254410280881 + 30804462144 = 504391^2 + 175512^2 .
It is not a de Polignac number, because 285214743025 - 29 = 285214742513 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2769075124 + ... + 2769075226.
Almost surely, 2285214743025 is an apocalyptic number.
285214743025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
285214743025 is the 534055-th square number.
285214743025 is the 267028-th centered octagonal number.
It is an amenable number.
285214743025 is a deficient number, since it is larger than the sum of its proper divisors (100483371218).
285214743025 is an equidigital number, since it uses as much as digits as its factorization.
285214743025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 372 (or 186 counting only the distinct ones).
The product of its (nonzero) digits is 537600, while the sum is 43.
The spelling of 285214743025 in words is "two hundred eighty-five billion, two hundred fourteen million, seven hundred forty-three thousand, twenty-five".
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