Base | Representation |
---|---|
bin | 10110100010101101… |
… | …01100001101011101 |
3 | 1011020102122121100201 |
4 | 23101112230031131 |
5 | 144241143232424 |
6 | 5320522423501 |
7 | 605623013443 |
oct | 132126541535 |
9 | 34212577321 |
10 | 12102320989 |
11 | 5150498980 |
12 | 2419061b91 |
13 | 11ab40b8a5 |
14 | 82b454b93 |
15 | 4ac732d44 |
hex | 2d15ac35d |
12102320989 has 8 divisors (see below), whose sum is σ = 13233028032. Its totient is φ = 10976696640.
The previous prime is 12102320969. The next prime is 12102321013. The reversal of 12102320989 is 98902320121.
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 12102320989 - 25 = 12102320957 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 (12102320929) 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, 1265689 + ... + 1275214.
It is an arithmetic number, because the mean of its divisors is an integer number (1654128504).
Almost surely, 212102320989 is an apocalyptic number.
It is an amenable number.
12102320989 is a deficient number, since it is larger than the sum of its proper divisors (1130707043).
12102320989 is a wasteful number, since it uses less digits than its factorization.
12102320989 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2541347.
The product of its (nonzero) digits is 15552, while the sum is 37.
The spelling of 12102320989 in words is "twelve billion, one hundred two million, three hundred twenty thousand, nine hundred eighty-nine".
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