| Base | Representation |
|---|---|
| bin | 1100001011101100… |
| … | …01100000100100100 |
| 3 | 121212211011222020100 |
| 4 | 12011312030010210 |
| 5 | 101343334322434 |
| 6 | 3001002304100 |
| 7 | 321036456165 |
| oct | 60566140444 |
| 9 | 17784158210 |
| 10 | 6540542244 |
| 11 | 2856a69215 |
| 12 | 13264b8030 |
| 13 | 803077452 |
| 14 | 46091976c |
| 15 | 28430d699 |
| hex | 185d8c124 |
6540542244 has 144 divisors (see below), whose sum is σ = 17450976816. Its totient is φ = 2063232000.
The previous prime is 6540542189. The next prime is 6540542249. The reversal of 6540542244 is 4422450456.
6540542244 is a `hidden beast` number, since 6 + 5 + 405 + 4 + 2 + 244 = 666.
It can be written as a sum of positive squares in 8 ways, for example, as 286895844 + 6253646400 = 16938^2 + 79080^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 6540542199 and 6540542208.
It is not an unprimeable number, because it can be changed into a prime (6540542249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8206054 + ... + 8206850.
It is an arithmetic number, because the mean of its divisors is an integer number (121187339).
Almost surely, 26540542244 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6540542244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8725488408).
6540542244 is an abundant number, since it is smaller than the sum of its proper divisors (10910434572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6540542244 is a wasteful number, since it uses less digits than its factorization.
6540542244 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1006 (or 1001 counting only the distinct ones).
The product of its (nonzero) digits is 153600, while the sum is 36.
The square root of 6540542244 is about 80873.6189619334. The cubic root of 6540542244 is about 1870.1276514040.
The spelling of 6540542244 in words is "six billion, five hundred forty million, five hundred forty-two thousand, two hundred forty-four".
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