Base | Representation |
---|---|
bin | 10010101010100111… |
… | …11001000000101001 |
3 | 221212101200022210110 |
4 | 21111103321000221 |
5 | 131010412242301 |
6 | 4334221204533 |
7 | 503222620050 |
oct | 112523710051 |
9 | 27771608713 |
10 | 10021212201 |
11 | 4282793060 |
12 | 1b38100749 |
13 | c39206580 |
14 | 6b0cc5397 |
15 | 3d9b9d0d6 |
hex | 2554f9029 |
10021212201 has 64 divisors (see below), whose sum is σ = 18425143296. Its totient is φ = 4675449600.
The previous prime is 10021212181. The next prime is 10021212211. The reversal of 10021212201 is 10221212001.
It is not a de Polignac number, because 10021212201 - 215 = 10021179433 is a prime.
It is not an unprimeable number, because it can be changed into a prime (10021212211) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66016 + ... + 156206.
It is an arithmetic number, because the mean of its divisors is an integer number (287892864).
Almost surely, 210021212201 is an apocalyptic number.
10021212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
10021212201 is a deficient number, since it is larger than the sum of its proper divisors (8403931095).
10021212201 is a wasteful number, since it uses less digits than its factorization.
10021212201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 90262.
The product of its (nonzero) digits is 16, while the sum is 12.
Adding to 10021212201 its reverse (10221212001), we get a palindrome (20242424202).
It can be divided in two parts, 10021 and 212201, that added together give a palindrome (222222).
The spelling of 10021212201 in words is "ten billion, twenty-one million, two hundred twelve thousand, two hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •