Base | Representation |
---|---|
bin | 11010011100110… |
… | …00111101001001 |
3 | 120110111110201011 |
4 | 31032120331021 |
5 | 423300013131 |
6 | 34003323521 |
7 | 5332625632 |
oct | 1516307511 |
9 | 513443634 |
10 | 221876041 |
11 | 104274832 |
12 | 623805a1 |
13 | 36c765ca |
14 | 21678889 |
15 | 1472b0b1 |
hex | d398f49 |
221876041 has 4 divisors (see below), whose sum is σ = 222094800. Its totient is φ = 221657284.
The previous prime is 221876029. The next prime is 221876059. The reversal of 221876041 is 140678122.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 221876041 - 217 = 221744969 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 221875994 and 221876012.
It is not an unprimeable number, because it can be changed into a prime (221876341) 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, 107851 + ... + 109888.
It is an arithmetic number, because the mean of its divisors is an integer number (55523700).
Almost surely, 2221876041 is an apocalyptic number.
It is an amenable number.
221876041 is a deficient number, since it is larger than the sum of its proper divisors (218759).
221876041 is a wasteful number, since it uses less digits than its factorization.
221876041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 218758.
The product of its (nonzero) digits is 5376, while the sum is 31.
The square root of 221876041 is about 14895.5040532370. The cubic root of 221876041 is about 605.3921742972.
The spelling of 221876041 in words is "two hundred twenty-one million, eight hundred seventy-six thousand, forty-one".
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