Base | Representation |
---|---|
bin | 1101011011110100111… |
… | …1000110111110000101 |
3 | 211001202102012101210010 |
4 | 3112331033012332011 |
5 | 12240143334334341 |
6 | 254010511020433 |
7 | 22450432442256 |
oct | 3267517067605 |
9 | 731672171703 |
10 | 230808121221 |
11 | 89981192707 |
12 | 3889520a719 |
13 | 189c3c4b7c2 |
14 | b2579aab2d |
15 | 600cecb716 |
hex | 35bd3c6f85 |
230808121221 has 8 divisors (see below), whose sum is σ = 307747304224. Its totient is φ = 153870509520.
The previous prime is 230808121217. The next prime is 230808121241. The reversal of 230808121221 is 122121808032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 230808121221 - 22 = 230808121217 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 (230808121241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8490 + ... + 679476.
It is an arithmetic number, because the mean of its divisors is an integer number (38468413028).
Almost surely, 2230808121221 is an apocalyptic number.
It is an amenable number.
230808121221 is a deficient number, since it is larger than the sum of its proper divisors (76939183003).
230808121221 is a wasteful number, since it uses less digits than its factorization.
230808121221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 785651.
The product of its (nonzero) digits is 3072, while the sum is 30.
Adding to 230808121221 its reverse (122121808032), we get a palindrome (352929929253).
The spelling of 230808121221 in words is "two hundred thirty billion, eight hundred eight million, one hundred twenty-one thousand, two hundred twenty-one".
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