Base | Representation |
---|---|
bin | 10010101000001101… |
… | …111101011100010010 |
3 | 1220121222111000021221 |
4 | 102220031331130102 |
5 | 311431014213020 |
6 | 13104442235254 |
7 | 1305446024203 |
oct | 225015753422 |
9 | 56558430257 |
10 | 20002101010 |
11 | 85347345a1 |
12 | 3a627b5b2a |
13 | 1b69c62038 |
14 | d7a6b15aa |
15 | 7c10336aa |
hex | 4a837d712 |
20002101010 has 8 divisors (see below), whose sum is σ = 36003781836. Its totient is φ = 8000840400.
The previous prime is 20002100981. The next prime is 20002101017. The reversal of 20002101010 is 1010120002.
It can be written as a sum of positive squares in 2 ways, for example, as 19237412601 + 764688409 = 138699^2 + 27653^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 20002100984 and 20002101002.
It is not an unprimeable number, because it can be changed into a prime (20002101017) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000105041 + ... + 1000105060.
Almost surely, 220002101010 is an apocalyptic number.
20002101010 is a deficient number, since it is larger than the sum of its proper divisors (16001680826).
20002101010 is a wasteful number, since it uses less digits than its factorization.
20002101010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2000210108.
The product of its (nonzero) digits is 4, while the sum is 7.
Adding to 20002101010 its reverse (1010120002), we get a palindrome (21012221012).
The spelling of 20002101010 in words is "twenty billion, two million, one hundred one thousand, ten".
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