Base | Representation |
---|---|
bin | 10010110100001100… |
… | …011100011001010101 |
3 | 1221010222120021012010 |
4 | 102310030130121111 |
5 | 312333433430401 |
6 | 13140421014433 |
7 | 1313435631252 |
oct | 226414343125 |
9 | 57128507163 |
10 | 20203030101 |
11 | 86280a15a1 |
12 | 3ab9b54419 |
13 | 1b9c7831a7 |
14 | d99256429 |
15 | 7d39c2ed6 |
hex | 4b431c655 |
20203030101 has 64 divisors (see below), whose sum is σ = 28498832640. Its totient is φ = 12721766400.
The previous prime is 20203030073. The next prime is 20203030103. The reversal of 20203030101 is 10103030202.
It is a happy number.
It is not a de Polignac number, because 20203030101 - 217 = 20202899029 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20203030103) 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, 147467305 + ... + 147467441.
It is an arithmetic number, because the mean of its divisors is an integer number (445294260).
Almost surely, 220203030101 is an apocalyptic number.
It is an amenable number.
20203030101 is a deficient number, since it is larger than the sum of its proper divisors (8295802539).
20203030101 is a wasteful number, since it uses less digits than its factorization.
20203030101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486.
The product of its (nonzero) digits is 36, while the sum is 12.
Adding to 20203030101 its reverse (10103030202), we get a palindrome (30306060303).
The spelling of 20203030101 in words is "twenty billion, two hundred three million, thirty thousand, one hundred one".
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