Base | Representation |
---|---|
bin | 10011000010011110… |
… | …10001111001100010 |
3 | 222101100020100211110 |
4 | 21201033101321202 |
5 | 131413130030033 |
6 | 4410130324150 |
7 | 511202604654 |
oct | 114117217142 |
9 | 28340210743 |
10 | 10221330018 |
11 | 4375746589 |
12 | 1b93129656 |
13 | c6b802393 |
14 | 6cd6d86d4 |
15 | 3ec52c363 |
hex | 2613d1e62 |
10221330018 has 8 divisors (see below), whose sum is σ = 20442660048. Its totient is φ = 3407110004.
The previous prime is 10221330017. The next prime is 10221330061. The reversal of 10221330018 is 81003312201.
It is a sphenic number, since it is the product of 3 distinct primes.
10221330018 is an admirable number.
It is a junction number, because it is equal to n+sod(n) for n = 10221329976 and 10221330003.
It is not an unprimeable number, because it can be changed into a prime (10221330017) 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, 851777496 + ... + 851777507.
It is an arithmetic number, because the mean of its divisors is an integer number (2555332506).
Almost surely, 210221330018 is an apocalyptic number.
10221330018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10221330018 is a wasteful number, since it uses less digits than its factorization.
10221330018 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1703555008.
The product of its (nonzero) digits is 288, while the sum is 21.
Adding to 10221330018 its reverse (81003312201), we get a palindrome (91224642219).
It can be divided in two parts, 102213 and 30018, that added together give a palindrome (132231).
The spelling of 10221330018 in words is "ten billion, two hundred twenty-one million, three hundred thirty thousand, eighteen".
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