Base | Representation |
---|---|
bin | 10001101010000101100… |
… | …110010110101001010001 |
3 | 11022000001110221120220202 |
4 | 101222011212112221101 |
5 | 124340042040421200 |
6 | 2325234412544545 |
7 | 153444506350430 |
oct | 21520546265121 |
9 | 4260043846822 |
10 | 1213422201425 |
11 | 428678220745 |
12 | 177204782155 |
13 | 8a56b2a2425 |
14 | 42a30d97117 |
15 | 2186d2391d5 |
hex | 11a85996a51 |
1213422201425 has 24 divisors (see below), whose sum is σ = 1721984428800. Its totient is φ = 830903604480.
The previous prime is 1213422201377. The next prime is 1213422201443. The reversal of 1213422201425 is 5241022243121.
It is not a de Polignac number, because 1213422201425 - 210 = 1213422200401 is a prime.
It is a super-2 number, since 2×12134222014252 (a number of 25 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4696040 + ... + 4947689.
It is an arithmetic number, because the mean of its divisors is an integer number (71749351200).
Almost surely, 21213422201425 is an apocalyptic number.
It is an amenable number.
1213422201425 is a deficient number, since it is larger than the sum of its proper divisors (508562227375).
1213422201425 is an equidigital number, since it uses as much as digits as its factorization.
1213422201425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9644465 (or 9644460 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 29.
Adding to 1213422201425 its reverse (5241022243121), we get a palindrome (6454444444546).
The spelling of 1213422201425 in words is "one trillion, two hundred thirteen billion, four hundred twenty-two million, two hundred one thousand, four hundred twenty-five".
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