| Base | Representation |
|---|---|
| bin | 1001000111001111101000… |
| … | …10010111010010001010100 |
| 3 | 2121221211001111021012100000 |
| 4 | 10203213310102322101110 |
| 5 | 10111314131441040222 |
| 6 | 110342145435051300 |
| 7 | 4135564611130635 |
| oct | 443476422722124 |
| 9 | 77854044235300 |
| 10 | 20040121033812 |
| 11 | 6426a70973620 |
| 12 | 22b7aabba0b30 |
| 13 | b24a10462929 |
| 14 | 4d3d3893388c |
| 15 | 24b4522c99ac |
| hex | 1239f44ba454 |
20040121033812 has 288 divisors, whose sum is σ = 58427187960960. Its totient is φ = 5954409377280.
The previous prime is 20040121033811. The next prime is 20040121033813. The reversal of 20040121033812 is 21833012104002.
20040121033812 is a `hidden beast` number, since 2 + 0 + 0 + 401 + 210 + 3 + 38 + 12 = 666.
It is an interprime number because it is at equal distance from previous prime (20040121033811) and next prime (20040121033813).
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20040121033811) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 968438938 + ... + 968459630.
It is an arithmetic number, because the mean of its divisors is an integer number (202872180420).
Almost surely, 220040121033812 is an apocalyptic number.
20040121033812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20040121033812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29213593980480).
20040121033812 is an abundant number, since it is smaller than the sum of its proper divisors (38387066927148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20040121033812 is a wasteful number, since it uses less digits than its factorization.
20040121033812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22485 (or 22471 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
Adding to 20040121033812 its reverse (21833012104002), we get a palindrome (41873133137814).
The spelling of 20040121033812 in words is "twenty trillion, forty billion, one hundred twenty-one million, thirty-three thousand, eight hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •