Base | Representation |
---|---|
bin | 1101011001010000111… |
… | …0111111000111110101 |
3 | 210222222110210120010102 |
4 | 3112110032333013311 |
5 | 12232241234120341 |
6 | 253414335003445 |
7 | 22424410423610 |
oct | 3262416770765 |
9 | 728873716112 |
10 | 230120223221 |
11 | 89658959769 |
12 | 38722969585 |
13 | 18914588975 |
14 | b1d04a3177 |
15 | 5ebc8e9c9b |
hex | 35943bf1f5 |
230120223221 has 8 divisors (see below), whose sum is σ = 263014707840. Its totient is φ = 197230780368.
The previous prime is 230120223209. The next prime is 230120223233. The reversal of 230120223221 is 122322021032.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (230120223209) and next prime (230120223233).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-230120223221 is a prime.
It is a super-2 number, since 2×2301202232212 (a number of 24 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 = 230120223193 and 230120223202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230120223251) 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, 1162121 + ... + 1345646.
It is an arithmetic number, because the mean of its divisors is an integer number (32876838480).
Almost surely, 2230120223221 is an apocalyptic number.
It is an amenable number.
230120223221 is a deficient number, since it is larger than the sum of its proper divisors (32894484619).
230120223221 is a wasteful number, since it uses less digits than its factorization.
230120223221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2520883.
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 230120223221 its reverse (122322021032), we get a palindrome (352442244253).
The spelling of 230120223221 in words is "two hundred thirty billion, one hundred twenty million, two hundred twenty-three thousand, two hundred twenty-one".
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