Base | Representation |
---|---|
bin | 10010101000000110… |
… | …010101001010010010 |
3 | 1220121211201101210212 |
4 | 102220012111022102 |
5 | 311430011213020 |
6 | 13104331324122 |
7 | 1305423024251 |
oct | 225006251222 |
9 | 56554641725 |
10 | 20000101010 |
11 | 85335989aa |
12 | 3a61bb0642 |
13 | 1b697118c6 |
14 | d7a310798 |
15 | 7c0c8acc5 |
hex | 4a8195292 |
20000101010 has 16 divisors (see below), whose sum is σ = 38117839896. Its totient is φ = 7529449728.
The previous prime is 20000100997. The next prime is 20000101021. The reversal of 20000101010 is 1010100002.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 19985759641 + 14341369 = 141371^2 + 3787^2 .
It is a Harshad number since it is a multiple of its sum of digits (5).
20000101010 is a modest number, since divided by 101010 gives 20000 as remainder.
It is a junction number, because it is equal to n+sod(n) for n = 20000100985 and 20000101003.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58823657 + ... + 58823996.
Almost surely, 220000101010 is an apocalyptic number.
20000101010 is a deficient number, since it is larger than the sum of its proper divisors (18117738886).
20000101010 is a wasteful number, since it uses less digits than its factorization.
20000101010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 117647677.
The product of its (nonzero) digits is 2, while the sum is 5.
Adding to 20000101010 its reverse (1010100002), we get a palindrome (21010201012).
The spelling of 20000101010 in words is "twenty billion, one hundred one thousand, ten".
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