Base | Representation |
---|---|
bin | 10010101010000000… |
… | …001001000111001111 |
3 | 1220201001210201120201 |
4 | 102222000021013033 |
5 | 312011200030411 |
6 | 13111431554331 |
7 | 1306261321150 |
oct | 225200110717 |
9 | 56631721521 |
10 | 20032033231 |
11 | 854a619071 |
12 | 3a7082b9a7 |
13 | 1b73212202 |
14 | d80663927 |
15 | 7c39973c1 |
hex | 4aa0091cf |
20032033231 has 8 divisors (see below), whose sum is σ = 23380853760. Its totient is φ = 16804988088.
The previous prime is 20032033199. The next prime is 20032033247. The reversal of 20032033231 is 13233023002.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20032033231 - 25 = 20032033199 is a prime.
It is a super-2 number, since 2×200320332312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20032033199 and 20032033208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20032033031) 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, 30443491 + ... + 30444148.
It is an arithmetic number, because the mean of its divisors is an integer number (2922606720).
Almost surely, 220032033231 is an apocalyptic number.
20032033231 is a deficient number, since it is larger than the sum of its proper divisors (3348820529).
20032033231 is an equidigital number, since it uses as much as digits as its factorization.
20032033231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 60887693.
The product of its (nonzero) digits is 648, while the sum is 19.
Adding to 20032033231 its reverse (13233023002), we get a palindrome (33265056233).
The spelling of 20032033231 in words is "twenty billion, thirty-two million, thirty-three thousand, two hundred thirty-one".
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