Base | Representation |
---|---|
bin | 10010101110000111… |
… | …010001001101111111 |
3 | 1220212212121010100002 |
4 | 102232013101031333 |
5 | 312131324312203 |
6 | 13122334224515 |
7 | 1311056524403 |
oct | 225607211577 |
9 | 56785533302 |
10 | 20101010303 |
11 | 8585550610 |
12 | 3a8b95513b |
13 | 1b845b324a |
14 | d8989b103 |
15 | 7c9a6ed88 |
hex | 4ae1d137f |
20101010303 has 16 divisors (see below), whose sum is σ = 22080625056. Its totient is φ = 18147018240.
The previous prime is 20101010269. The next prime is 20101010317. The reversal of 20101010303 is 30301010102.
It is a cyclic number.
It is not a de Polignac number, because 20101010303 - 212 = 20101006207 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (11).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20101010353) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1777475 + ... + 1788747.
It is an arithmetic number, because the mean of its divisors is an integer number (1380039066).
Almost surely, 220101010303 is an apocalyptic number.
20101010303 is a deficient number, since it is larger than the sum of its proper divisors (1979614753).
20101010303 is a wasteful number, since it uses less digits than its factorization.
20101010303 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12394.
The product of its (nonzero) digits is 18, while the sum is 11.
Adding to 20101010303 its reverse (30301010102), we get a palindrome (50402020405).
The spelling of 20101010303 in words is "twenty billion, one hundred one million, ten thousand, three hundred three".
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