Base | Representation |
---|---|
bin | 1001100110000101110110… |
… | …10001001101101111110110 |
3 | 2202201010211202102212011211 |
4 | 10303002323101031233312 |
5 | 10231200320412210402 |
6 | 112513114350152034 |
7 | 4305266124025312 |
oct | 463027321155766 |
9 | 82633752385154 |
10 | 21100021210102 |
11 | 67a551799553a |
12 | 24493aa4b261a |
13 | ba09535a7163 |
14 | 52d364486b42 |
15 | 268cd76264d7 |
hex | 1330bb44dbf6 |
21100021210102 has 32 divisors (see below), whose sum is σ = 31988408518080. Its totient is φ = 10437808435200.
The previous prime is 21100021210087. The next prime is 21100021210237. The reversal of 21100021210102 is 20101212000112.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261302278 + ... + 261383014.
It is an arithmetic number, because the mean of its divisors is an integer number (999637766190).
Almost surely, 221100021210102 is an apocalyptic number.
21100021210102 is a deficient number, since it is larger than the sum of its proper divisors (10888387307978).
21100021210102 is a wasteful number, since it uses less digits than its factorization.
21100021210102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84376.
The product of its (nonzero) digits is 16, while the sum is 13.
Adding to 21100021210102 its reverse (20101212000112), we get a palindrome (41201233210214).
The spelling of 21100021210102 in words is "twenty-one trillion, one hundred billion, twenty-one million, two hundred ten thousand, one hundred two".
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