Base | Representation |
---|---|
bin | 1001100110101100111110… |
… | …00110010010011111111100 |
3 | 2202210011001102210200111221 |
4 | 10303112133012102133330 |
5 | 10232021323443423122 |
6 | 112530510400323124 |
7 | 4306641435620206 |
oct | 463263706223774 |
9 | 82704042720457 |
10 | 21121023420412 |
11 | 6803415107a43 |
12 | 24514900134a4 |
13 | ba291c7b4036 |
14 | 5303978d3776 |
15 | 26961635d6c7 |
hex | 13359f1927fc |
21121023420412 has 24 divisors (see below), whose sum is σ = 38587127594400. Its totient is φ = 10102811576256.
The previous prime is 21121023420403. The next prime is 21121023420487. The reversal of 21121023420412 is 21402432012112.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835206568 + ... + 835231855.
It is an arithmetic number, because the mean of its divisors is an integer number (1607796983100).
Almost surely, 221121023420412 is an apocalyptic number.
It is an amenable number.
21121023420412 is a deficient number, since it is larger than the sum of its proper divisors (17466104173988).
21121023420412 is a wasteful number, since it uses less digits than its factorization.
21121023420412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1670438565 (or 1670438563 counting only the distinct ones).
The product of its (nonzero) digits is 1536, while the sum is 25.
Adding to 21121023420412 its reverse (21402432012112), we get a palindrome (42523455432524).
The spelling of 21121023420412 in words is "twenty-one trillion, one hundred twenty-one billion, twenty-three million, four hundred twenty thousand, four hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.122 sec. • engine limits •