Base | Representation |
---|---|
bin | 10010101000000110… |
… | …010111111001011101 |
3 | 1220121211201222012002 |
4 | 102220012113321131 |
5 | 311430012042341 |
6 | 13104331452045 |
7 | 1305423102035 |
oct | 225006277135 |
9 | 56554658162 |
10 | 20000112221 |
11 | 85335a6371 |
12 | 3a61bb7025 |
13 | 1b69716a3b |
14 | d7a3148c5 |
15 | 7c0c8e29b |
hex | 4a8197e5d |
20000112221 has 8 divisors (see below), whose sum is σ = 20088446400. Its totient is φ = 19911960000.
The previous prime is 20000112199. The next prime is 20000112229. The reversal of 20000112221 is 12221100002.
It is a happy number.
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 20000112221 - 26 = 20000112157 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 (20000112229) 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, 177221 + ... + 267221.
It is an arithmetic number, because the mean of its divisors is an integer number (2511055800).
Almost surely, 220000112221 is an apocalyptic number.
It is an amenable number.
20000112221 is a deficient number, since it is larger than the sum of its proper divisors (88334179).
20000112221 is an equidigital number, since it uses as much as digits as its factorization.
20000112221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 90979.
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 20000112221 its reverse (12221100002), we get a palindrome (32221212223).
The spelling of 20000112221 in words is "twenty billion, one hundred twelve thousand, two hundred twenty-one".
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