Base | Representation |
---|---|
bin | 11010101011110… |
… | …00001100011001 |
3 | 120121012012101101 |
4 | 31111320030121 |
5 | 424300322001 |
6 | 34113351401 |
7 | 5355412561 |
oct | 1525701431 |
9 | 517165341 |
10 | 223839001 |
11 | 105395611 |
12 | 62b68561 |
13 | 374b2c19 |
14 | 21a29da1 |
15 | 149b7a01 |
hex | d578319 |
223839001 has 4 divisors (see below), whose sum is σ = 223876404. Its totient is φ = 223801600.
The previous prime is 223838977. The next prime is 223839029. The reversal of 223839001 is 100938322.
223839001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100938322 = 2 ⋅50469161.
It can be written as a sum of positive squares in 2 ways, for example, as 170563600 + 53275401 = 13060^2 + 7299^2 .
It is a 3-Lehmer number, since φ(223839001) divides (223839001-1)3.
It is a cyclic number.
It is not a de Polignac number, because 223839001 - 25 = 223838969 is a prime.
It is a deceptive number, since it divides R223839000.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (223839041) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7480 + ... + 22441.
It is an arithmetic number, because the mean of its divisors is an integer number (55969101).
Almost surely, 2223839001 is an apocalyptic number.
223839001 is the 7481-st decagonal number.
It is an amenable number.
223839001 is a deficient number, since it is larger than the sum of its proper divisors (37403).
223839001 is an equidigital number, since it uses as much as digits as its factorization.
223839001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37402.
The product of its (nonzero) digits is 2592, while the sum is 28.
The square root of 223839001 is about 14961.2499812014. The cubic root of 223839001 is about 607.1722571837.
The spelling of 223839001 in words is "two hundred twenty-three million, eight hundred thirty-nine thousand, one".
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