Base | Representation |
---|---|
bin | 100100101010000… |
… | …1000010000000101 |
3 | 10011201111011020112 |
4 | 1021110020100011 |
5 | 10004340412240 |
6 | 322015242405 |
7 | 42323641013 |
oct | 11124102005 |
9 | 3151434215 |
10 | 1230013445 |
11 | 581346341 |
12 | 2a3b19405 |
13 | 167aa260b |
14 | b95038b3 |
15 | 72eb8665 |
hex | 49508405 |
1230013445 has 8 divisors (see below), whose sum is σ = 1481464320. Its totient is φ = 980378640.
The previous prime is 1230013441. The next prime is 1230013457. The reversal of 1230013445 is 5443100321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1230013445 - 22 = 1230013441 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1230013445.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230013441) 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, 452525 + ... + 455234.
It is an arithmetic number, because the mean of its divisors is an integer number (185183040).
Almost surely, 21230013445 is an apocalyptic number.
It is an amenable number.
1230013445 is a deficient number, since it is larger than the sum of its proper divisors (251450875).
1230013445 is an equidigital number, since it uses as much as digits as its factorization.
1230013445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 908035.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 1230013445 is about 35071.5475136185. The cubic root of 1230013445 is about 1071.4451736136.
Adding to 1230013445 its reverse (5443100321), we get a palindrome (6673113766).
The spelling of 1230013445 in words is "one billion, two hundred thirty million, thirteen thousand, four hundred forty-five".
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