Base | Representation |
---|---|
bin | 11110110111101110011… |
… | …111111111100100111100 |
3 | 21111210202102110012010220 |
4 | 132313232133333210330 |
5 | 234224132040204322 |
6 | 4302322250101340 |
7 | 306160525345266 |
oct | 36675637774474 |
9 | 7453672405126 |
10 | 2121420241212 |
11 | 74876446a178 |
12 | 2a318b41a850 |
13 | 125083a6634c |
14 | 7496a696b36 |
15 | 3a2b29c555c |
hex | 1edee7ff93c |
2121420241212 has 48 divisors (see below), whose sum is σ = 5050761609600. Its totient is φ = 692781863488.
The previous prime is 2121420241207. The next prime is 2121420241243.
2121420241212 is nontrivially palindromic in base 10.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2007462 + ... + 2876237.
It is an arithmetic number, because the mean of its divisors is an integer number (105224200200).
Almost surely, 22121420241212 is an apocalyptic number.
It is an amenable number.
2121420241212 is an abundant number, since it is smaller than the sum of its proper divisors (2929341368388).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2121420241212 is a wasteful number, since it uses less digits than its factorization.
2121420241212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4884442 (or 4884440 counting only the distinct ones).
The product of its (nonzero) digits is 1024, while the sum is 24.
It can be divided in two parts, 2121420 and 241212, that added together give a palindrome (2362632).
The spelling of 2121420241212 in words is "two trillion, one hundred twenty-one billion, four hundred twenty million, two hundred forty-one thousand, two hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •