Base | Representation |
---|---|
bin | 10010101001010011… |
… | …000000101001110101 |
3 | 1220200020112122022201 |
4 | 102221103000221311 |
5 | 312000132431401 |
6 | 13110330224501 |
7 | 1306055624104 |
oct | 225123005165 |
9 | 56606478281 |
10 | 20020202101 |
11 | 8543978179 |
12 | 3a68885131 |
13 | 1b7092c043 |
14 | d7cc6403b |
15 | 7c290bb01 |
hex | 4a94c0a75 |
20020202101 has 8 divisors (see below), whose sum is σ = 20668304384. Its totient is φ = 19372242960.
The previous prime is 20020202071. The next prime is 20020202107. The reversal of 20020202101 is 10120202002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20020202101 - 27 = 20020201973 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20020202107) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298036 + ... + 358978.
It is an arithmetic number, because the mean of its divisors is an integer number (2583538048).
Almost surely, 220020202101 is an apocalyptic number.
It is an amenable number.
20020202101 is a deficient number, since it is larger than the sum of its proper divisors (648102283).
20020202101 is a wasteful number, since it uses less digits than its factorization.
20020202101 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71571.
The product of its (nonzero) digits is 16, while the sum is 10.
Adding to 20020202101 its reverse (10120202002), we get a palindrome (30140404103).
Subtracting from 20020202101 its reverse (10120202002), we obtain a palindrome (9900000099).
The spelling of 20020202101 in words is "twenty billion, twenty million, two hundred two thousand, one hundred one".
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