Base | Representation |
---|---|
bin | 10001111010101010101… |
… | …011110010110000001110 |
3 | 11100201000010122112101002 |
4 | 101322222223302300032 |
5 | 130133021402102304 |
6 | 2341341104420302 |
7 | 154644612322646 |
oct | 21725253626016 |
9 | 4321003575332 |
10 | 1231224253454 |
11 | 435182aa1938 |
12 | 17a752617692 |
13 | 8c1474b6720 |
14 | 4383d3b7526 |
15 | 2206104131e |
hex | 11eaaaf2c0e |
1231224253454 has 16 divisors (see below), whose sum is σ = 1989071825328. Its totient is φ = 568208459712.
The previous prime is 1231224253451. The next prime is 1231224253471. The reversal of 1231224253454 is 4543524221321.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1231224253451) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1728092 + ... + 2334255.
It is an arithmetic number, because the mean of its divisors is an integer number (124316989083).
Almost surely, 21231224253454 is an apocalyptic number.
1231224253454 is a deficient number, since it is larger than the sum of its proper divisors (757847571874).
1231224253454 is a wasteful number, since it uses less digits than its factorization.
1231224253454 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4074019.
The product of its digits is 230400, while the sum is 38.
Adding to 1231224253454 its reverse (4543524221321), we get a palindrome (5774748474775).
The spelling of 1231224253454 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-four million, two hundred fifty-three thousand, four hundred fifty-four".
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