Base | Representation |
---|---|
bin | 11000000010000100… |
… | …00110110001010000 |
3 | 1020022011211020202212 |
4 | 30001002012301100 |
5 | 202410432343440 |
6 | 5532135331252 |
7 | 634505104112 |
oct | 140102066120 |
9 | 36264736685 |
10 | 12902231120 |
11 | 5520a78229 |
12 | 2600b20b28 |
13 | 12a805c8ac |
14 | 8a57993b2 |
15 | 507a8d465 |
hex | 301086c50 |
12902231120 has 20 divisors (see below), whose sum is σ = 29997687540. Its totient is φ = 5160892416.
The previous prime is 12902231063. The next prime is 12902231129. The reversal of 12902231120 is 2113220921.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 2507205184 + 10395025936 = 50072^2 + 101956^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12902231129) 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, 80638865 + ... + 80639024.
It is an arithmetic number, because the mean of its divisors is an integer number (1499884377).
Almost surely, 212902231120 is an apocalyptic number.
12902231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12902231120 is an abundant number, since it is smaller than the sum of its proper divisors (17095456420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12902231120 is a wasteful number, since it uses less digits than its factorization.
12902231120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161277902 (or 161277896 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 23.
The spelling of 12902231120 in words is "twelve billion, nine hundred two million, two hundred thirty-one thousand, one hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.075 sec. • engine limits •