Base | Representation |
---|---|
bin | 110010011111111001… |
… | …110100011110000101 |
3 | 12011221211220100222200 |
4 | 302133321310132011 |
5 | 1342021404421041 |
6 | 40524232545113 |
7 | 3626452205541 |
oct | 623771643605 |
9 | 164854810880 |
10 | 54222342021 |
11 | 20aa510a111 |
12 | a612b52199 |
13 | 516176bb63 |
14 | 28a5400a21 |
15 | 16253d91b6 |
hex | c9fe74785 |
54222342021 has 12 divisors (see below), whose sum is σ = 79798919148. Its totient is φ = 35466185664.
The previous prime is 54222342019. The next prime is 54222342037. The reversal of 54222342021 is 12024322245.
54222342021 is a `hidden beast` number, since 5 + 422 + 2 + 34 + 202 + 1 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 45426528225 + 8795813796 = 213135^2 + 93786^2 .
It is not a de Polignac number, because 54222342021 - 21 = 54222342019 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (54222342001) 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, 56836360 + ... + 56837313.
It is an arithmetic number, because the mean of its divisors is an integer number (6649909929).
Almost surely, 254222342021 is an apocalyptic number.
It is an amenable number.
54222342021 is a deficient number, since it is larger than the sum of its proper divisors (25576577127).
54222342021 is a wasteful number, since it uses less digits than its factorization.
54222342021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 113673732 (or 113673729 counting only the distinct ones).
The product of its (nonzero) digits is 7680, while the sum is 27.
Adding to 54222342021 its reverse (12024322245), we get a palindrome (66246664266).
The spelling of 54222342021 in words is "fifty-four billion, two hundred twenty-two million, three hundred forty-two thousand, twenty-one".
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