Base | Representation |
---|---|
bin | 101110101010… |
… | …000101001101 |
3 | 212000101202121 |
4 | 232222011031 |
5 | 11112342424 |
6 | 1114052541 |
7 | 205650601 |
oct | 56520515 |
9 | 25011677 |
10 | 12230989 |
11 | 69a4361 |
12 | 411a151 |
13 | 26c3194 |
14 | 18a5501 |
15 | 1118ee4 |
hex | baa14d |
12230989 has 8 divisors (see below), whose sum is σ = 12416000. Its totient is φ = 12047616.
The previous prime is 12230983. The next prime is 12230993. The reversal of 12230989 is 98903221.
12230989 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
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 12230989 - 27 = 12230861 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12230983) 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, 24262 + ... + 24760.
It is an arithmetic number, because the mean of its divisors is an integer number (1552000).
Almost surely, 212230989 is an apocalyptic number.
It is an amenable number.
12230989 is a deficient number, since it is larger than the sum of its proper divisors (185011).
12230989 is a wasteful number, since it uses less digits than its factorization.
12230989 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 819.
The product of its (nonzero) digits is 7776, while the sum is 34.
The square root of 12230989 is about 3497.2830883416. The cubic root of 12230989 is about 230.4025025147.
The spelling of 12230989 in words is "twelve million, two hundred thirty thousand, nine hundred eighty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •