Base | Representation |
---|---|
bin | 10010101001011110… |
… | …111100110010111111 |
3 | 1220200110102122210001 |
4 | 102221132330302333 |
5 | 312001433111111 |
6 | 13110521255131 |
7 | 1306124341213 |
oct | 225136746277 |
9 | 56613378701 |
10 | 20023332031 |
11 | 854571579a |
12 | 3a699344a7 |
13 | 1b71486881 |
14 | d7d43a943 |
15 | 7c2d291c1 |
hex | 4a97bccbf |
20023332031 has 8 divisors (see below), whose sum is σ = 20649513600. Its totient is φ = 19406710680.
The previous prime is 20023332011. The next prime is 20023332181. The reversal of 20023332031 is 13023332002.
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 20023332031 - 27 = 20023331903 is a prime.
It is a super-3 number, since 3×200233320313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20023332011) 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, 2385801 + ... + 2394178.
It is an arithmetic number, because the mean of its divisors is an integer number (2581189200).
Almost surely, 220023332031 is an apocalyptic number.
20023332031 is a deficient number, since it is larger than the sum of its proper divisors (626181569).
20023332031 is an equidigital number, since it uses as much as digits as its factorization.
20023332031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4780109.
The product of its (nonzero) digits is 648, while the sum is 19.
Adding to 20023332031 its reverse (13023332002), we get a palindrome (33046664033).
The spelling of 20023332031 in words is "twenty billion, twenty-three million, three hundred thirty-two thousand, thirty-one".
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