Base | Representation |
---|---|
bin | 10010101001111101… |
… | …010110001010001001 |
3 | 1220201000102111002122 |
4 | 102221331112022021 |
5 | 312011003101413 |
6 | 13111404141025 |
7 | 1306252146140 |
oct | 225175261211 |
9 | 56630374078 |
10 | 20031300233 |
11 | 854a16838a |
12 | 3a70537775 |
13 | 1b73016699 |
14 | d80512757 |
15 | 7c38a0108 |
hex | 4a9f56289 |
20031300233 has 8 divisors (see below), whose sum is σ = 23324856768. Its totient is φ = 16845729264.
The previous prime is 20031300173. The next prime is 20031300257. The reversal of 20031300233 is 33200313002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20031300233 - 230 = 18957558409 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (20031300433) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 26995991 + ... + 26996732.
It is an arithmetic number, because the mean of its divisors is an integer number (2915607096).
Almost surely, 220031300233 is an apocalyptic number.
It is an amenable number.
20031300233 is a deficient number, since it is larger than the sum of its proper divisors (3293556535).
20031300233 is an equidigital number, since it uses as much as digits as its factorization.
20031300233 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 53992783.
The product of its (nonzero) digits is 324, while the sum is 17.
Adding to 20031300233 its reverse (33200313002), we get a palindrome (53231613235).
The spelling of 20031300233 in words is "twenty billion, thirty-one million, three hundred thousand, two hundred thirty-three".
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