Base | Representation |
---|---|
bin | 11000000000000110… |
… | …10000010001101111 |
3 | 1020021000211011202212 |
4 | 30000003100101233 |
5 | 202342223124431 |
6 | 5530350241035 |
7 | 634215052544 |
oct | 140003202157 |
9 | 36230734685 |
10 | 12885754991 |
11 | 551274449a |
12 | 25b74b617b |
13 | 12a48113c5 |
14 | 8a350abcb |
15 | 5063d672b |
hex | 3000d046f |
12885754991 has 8 divisors (see below), whose sum is σ = 13909661280. Its totient is φ = 11900486752.
The previous prime is 12885754957. The next prime is 12885755011. The reversal of 12885754991 is 19945758821.
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 12885754991 - 26 = 12885754927 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12885754991.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12885756991) 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, 9658820 + ... + 9660153.
It is an arithmetic number, because the mean of its divisors is an integer number (1738707660).
Almost surely, 212885754991 is an apocalyptic number.
12885754991 is a deficient number, since it is larger than the sum of its proper divisors (1023906289).
12885754991 is a wasteful number, since it uses less digits than its factorization.
12885754991 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19319025.
The product of its digits is 7257600, while the sum is 59.
The spelling of 12885754991 in words is "twelve billion, eight hundred eighty-five million, seven hundred fifty-four thousand, nine hundred ninety-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •