Base | Representation |
---|---|
bin | 10010101001010110… |
… | …000110011011101010 |
3 | 1220200022001210120110 |
4 | 102221112012123222 |
5 | 312000334342302 |
6 | 13110355435150 |
7 | 1306065536652 |
oct | 225126063352 |
9 | 56608053513 |
10 | 20021012202 |
11 | 8544380884 |
12 | 3a68bb5ab6 |
13 | 1b70b539a9 |
14 | d7cdd5362 |
15 | 7c2a1bb6c |
hex | 4a95866ea |
20021012202 has 8 divisors (see below), whose sum is σ = 40042024416. Its totient is φ = 6673670732.
The previous prime is 20021012189. The next prime is 20021012227. The reversal of 20021012202 is 20221012002.
It is a sphenic number, since it is the product of 3 distinct primes.
20021012202 is an admirable number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668417678 + ... + 1668417689.
It is an arithmetic number, because the mean of its divisors is an integer number (5005253052).
Almost surely, 220021012202 is an apocalyptic number.
20021012202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20021012202 is a wasteful number, since it uses less digits than its factorization.
20021012202 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3336835372.
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 20021012202 its reverse (20221012002), we get a palindrome (40242024204).
The spelling of 20021012202 in words is "twenty billion, twenty-one million, twelve thousand, two hundred two".
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