Base | Representation |
---|---|
bin | 101010010110101… |
… | …1100111101001110 |
3 | 10200001020111120121 |
4 | 1110231130331032 |
5 | 10402311414410 |
6 | 353005135154 |
7 | 50135003551 |
oct | 12455347516 |
9 | 3601214517 |
10 | 1421201230 |
11 | 66a25a579 |
12 | 337b5a4ba |
13 | 198592897 |
14 | d6a70698 |
15 | 84b819da |
hex | 54b5cf4e |
1421201230 has 16 divisors (see below), whose sum is σ = 2593206864. Its totient is φ = 560692800.
The previous prime is 1421201203. The next prime is 1421201233. The reversal of 1421201230 is 321021241.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1421201233) 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, 972696 + ... + 974155.
It is an arithmetic number, because the mean of its divisors is an integer number (162075429).
Almost surely, 21421201230 is an apocalyptic number.
1421201230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1421201230 is a deficient number, since it is larger than the sum of its proper divisors (1172005634).
1421201230 is a wasteful number, since it uses less digits than its factorization.
1421201230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1946931.
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 1421201230 is about 37698.8226606614. The cubic root of 1421201230 is about 1124.3077169629.
Adding to 1421201230 its reverse (321021241), we get a palindrome (1742222471).
The spelling of 1421201230 in words is "one billion, four hundred twenty-one million, two hundred one thousand, two hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •