Base | Representation |
---|---|
bin | 1011010100100… |
… | …1000001001000 |
3 | 10022100111011201 |
4 | 2311021001020 |
5 | 44124010000 |
6 | 4413433544 |
7 | 1114421143 |
oct | 265110110 |
9 | 108314151 |
10 | 47485000 |
11 | 24893202 |
12 | 13a9b8b4 |
13 | 9ab7744 |
14 | 644105a |
15 | 427e96a |
hex | 2d49048 |
47485000 has 40 divisors (see below), whose sum is σ = 111269070. Its totient is φ = 18992000.
The previous prime is 47484991. The next prime is 47485001. The reversal of 47485000 is 58474.
It can be written as a sum of positive squares in 5 ways, for example, as 1435204 + 46049796 = 1198^2 + 6786^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a self number, because there is not a number n which added to its sum of digits gives 47485000.
It is not an unprimeable number, because it can be changed into a prime (47485001) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 252 + ... + 9748.
Almost surely, 247485000 is an apocalyptic number.
47485000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47485000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55634535).
47485000 is an abundant number, since it is smaller than the sum of its proper divisors (63784070).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47485000 is an equidigital number, since it uses as much as digits as its factorization.
47485000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9523 (or 9504 counting only the distinct ones).
The product of its (nonzero) digits is 4480, while the sum is 28.
The square root of 47485000 is about 6890.9360757447. The cubic root of 47485000 is about 362.1196962825.
The spelling of 47485000 in words is "forty-seven million, four hundred eighty-five thousand".
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