Base | Representation |
---|---|
bin | 11011011011101… |
… | …01111000110011 |
3 | 121001000100200102 |
4 | 31231311320303 |
5 | 432402333021 |
6 | 34500143015 |
7 | 5462665511 |
oct | 1555657063 |
9 | 531010612 |
10 | 230121011 |
11 | 10899635a |
12 | 65097a6b |
13 | 388a23a3 |
14 | 227c34b1 |
15 | 1530900b |
hex | db75e33 |
230121011 has 8 divisors (see below), whose sum is σ = 233847648. Its totient is φ = 226408000.
The previous prime is 230121007. The next prime is 230121077. The reversal of 230121011 is 110121032.
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 230121011 - 22 = 230121007 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 230120983 and 230121001.
It is not an unprimeable number, because it can be changed into a prime (230121211) 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, 33881 + ... + 40101.
It is an arithmetic number, because the mean of its divisors is an integer number (29230956).
Almost surely, 2230121011 is an apocalyptic number.
230121011 is a deficient number, since it is larger than the sum of its proper divisors (3726637).
230121011 is an equidigital number, since it uses as much as digits as its factorization.
230121011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6813.
The product of its (nonzero) digits is 12, while the sum is 11.
The square root of 230121011 is about 15169.7399779957. The cubic root of 230121011 is about 612.8000016404.
Adding to 230121011 its reverse (110121032), we get a palindrome (340242043).
The spelling of 230121011 in words is "two hundred thirty million, one hundred twenty-one thousand, eleven".
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