Base | Representation |
---|---|
bin | 11011011011101… |
… | …01111101111111 |
3 | 121001000101010201 |
4 | 31231311331333 |
5 | 432402340333 |
6 | 34500144331 |
7 | 5462666464 |
oct | 1555657577 |
9 | 531011121 |
10 | 230121343 |
11 | 108996631 |
12 | 650980a7 |
13 | 388a259a |
14 | 227c366b |
15 | 1530917d |
hex | db75f7f |
230121343 has 4 divisors (see below), whose sum is σ = 230152720. Its totient is φ = 230089968.
The previous prime is 230121323. The next prime is 230121347. The reversal of 230121343 is 343121032.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 230121343 - 29 = 230120831 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 230121343.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230121347) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846 + ... + 21532.
It is an arithmetic number, because the mean of its divisors is an integer number (57538180).
Almost surely, 2230121343 is an apocalyptic number.
230121343 is a deficient number, since it is larger than the sum of its proper divisors (31377).
230121343 is a wasteful number, since it uses less digits than its factorization.
230121343 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31376.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 230121343 is about 15169.7509208293. The cubic root of 230121343 is about 612.8002963397.
Adding to 230121343 its reverse (343121032), we get a palindrome (573242375).
The spelling of 230121343 in words is "two hundred thirty million, one hundred twenty-one thousand, three hundred forty-three".
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