Base | Representation |
---|---|
bin | 10001101001001101111… |
… | …101101101100010011100 |
3 | 11021220122102120220102212 |
4 | 101221031331231202130 |
5 | 124331134113103122 |
6 | 2325002030535552 |
7 | 153412413516611 |
oct | 21511575554234 |
9 | 4256572526385 |
10 | 1212488800412 |
11 | 42823935574a |
12 | 176ba40675b8 |
13 | 8a44cab2a36 |
14 | 42983024508 |
15 | 21816310ce2 |
hex | 11a4df6d89c |
1212488800412 has 12 divisors (see below), whose sum is σ = 2122075966416. Its totient is φ = 606181381440.
The previous prime is 1212488800379. The next prime is 1212488800417. The reversal of 1212488800412 is 2140088842121.
It is a happy number.
It is a super-2 number, since 2×12124888004122 (a number of 25 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1212488800412.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212488800417) 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, 15711389 + ... + 15788372.
It is an arithmetic number, because the mean of its divisors is an integer number (176839663868).
Almost surely, 21212488800412 is an apocalyptic number.
It is an amenable number.
1212488800412 is a deficient number, since it is larger than the sum of its proper divisors (909587166004).
1212488800412 is a wasteful number, since it uses less digits than its factorization.
1212488800412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31509388 (or 31509386 counting only the distinct ones).
The product of its (nonzero) digits is 65536, while the sum is 41.
The spelling of 1212488800412 in words is "one trillion, two hundred twelve billion, four hundred eighty-eight million, eight hundred thousand, four hundred twelve".
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