Base | Representation |
---|---|
bin | 11110010010101… |
… | …11000100010101 |
3 | 122201011020011100 |
4 | 33021113010111 |
5 | 1010023041041 |
6 | 41114300313 |
7 | 6203626242 |
oct | 1711270425 |
9 | 581136140 |
10 | 254112021 |
11 | 120492139 |
12 | 71127699 |
13 | 40852257 |
14 | 25a6a5c9 |
15 | 174976b6 |
hex | f257115 |
254112021 has 12 divisors (see below), whose sum is σ = 370615648. Its totient is φ = 167762664.
The previous prime is 254112017. The next prime is 254112029. The reversal of 254112021 is 120211452.
254112021 is a `hidden beast` number, since 2 + 541 + 120 + 2 + 1 = 666.
254112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 254112021 - 22 = 254112017 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 254111985 and 254112003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (254112029) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136135 + ... + 137988.
Almost surely, 2254112021 is an apocalyptic number.
It is an amenable number.
254112021 is a deficient number, since it is larger than the sum of its proper divisors (116503627).
254112021 is a wasteful number, since it uses less digits than its factorization.
254112021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 274232 (or 274229 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 254112021 is about 15940.8914744440. The cubic root of 254112021 is about 633.3956407459.
Adding to 254112021 its reverse (120211452), we get a palindrome (374323473).
The spelling of 254112021 in words is "two hundred fifty-four million, one hundred twelve thousand, twenty-one".
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