Base | Representation |
---|---|
bin | 101010000011… |
… | …0010000100010 |
3 | 1112111001001112 |
4 | 1110012100202 |
5 | 21120430410 |
6 | 2104303322 |
7 | 355246160 |
oct | 124062042 |
9 | 45431045 |
10 | 22045730 |
11 | 11498313 |
12 | 7471b42 |
13 | 474b615 |
14 | 2cdc230 |
15 | 1e07105 |
hex | 1506422 |
22045730 has 32 divisors (see below), whose sum is σ = 47326464. Its totient is φ = 7229376.
The previous prime is 22045729. The next prime is 22045733. The reversal of 22045730 is 3754022.
It is a super-2 number, since 2×220457302 = 972028422465800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (23).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 22045696 and 22045705.
It is not an unprimeable number, because it can be changed into a prime (22045733) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5237 + ... + 8456.
It is an arithmetic number, because the mean of its divisors is an integer number (1478952).
Almost surely, 222045730 is an apocalyptic number.
22045730 is an abundant number, since it is smaller than the sum of its proper divisors (25280734).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
22045730 is a wasteful number, since it uses less digits than its factorization.
22045730 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13730.
The product of its (nonzero) digits is 1680, while the sum is 23.
The square root of 22045730 is about 4695.2880635803. The cubic root of 22045730 is about 280.3979460616.
Adding to 22045730 its reverse (3754022), we get a palindrome (25799752).
The spelling of 22045730 in words is "twenty-two million, forty-five thousand, seven hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.060 sec. • engine limits •