21542685 is an odd 8-digits composite number following 21542684
and preceding 21542686 . In scientific notation, it is written as 2.1542685 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 11244608 positive integers (up to 21542685) that are relatively prime to 21542685.
21542685 has 8 divisors, whose sum is 23468544
The reverse of 21542685 is 58624512
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million five hundred forty-two thousand six hundred eighty-five
Scientific notation
2.1542685 × 10^7
Engineering notation
2.1542685 × 10^6
Prime Factorization
15 × 47 × 30557
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21542685
Product of the distinct prime numbers
The prime factorization of 21542685 is 15 × 47 × 30557.
Since it has a total of 3 prime factors.
8 , 10 , 58 , 85 , 467 , 162 , 1779 , 2427 , 84772 , 17593 , 908144 , 211618 , 7365115 , 6877258 , 20801320 , 78384455 , 407583321 , 229498908 , 2659698670 , 3033902040
n×2
43085370
n×3
64628055
n×4
86170740
n×5
107713425
n÷2
10771342.5
n÷3
7180895
n÷3
5385671.25
n÷5
4308537
n2
464087277009225
n3
9.9976860211175E+21
n4
2.1537700068184E+29
n5
4.6397988819336E+36
2 √n
4641.4098073753
3 √n
278.24878528073
4 √n
68.127893020226
5 √n
29.285993809347
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21542684
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21542685 can be divided by 8 positive divisors.
The sum of these divisors (counting 21542685) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001011011100011101
3
Ternary
1111112111000020
4
Quaternary
1102023130131
5
Quinary
21003331220
6
Senary
2045422353
8
Octal
122133435
10
Decimal
21542685
12
Duodecimal
726a9b9
16
Hexadecimal
148b71d
20
Vigesimal
6ecge5
36
Base36
ctqfx
md5
006b6f6d63f0f034e01abfd919ddd095
sha1
93a90c02d85e906912a3f19d91e672a150bac3ca
sha256
d6c48a4f113b0d1f6446999bb94912c96056bde58ff63df698a9d89b03c708d3
sha512
dcf7af8e0fb9cc02c00175396cc16f7ceb661efda7146e62fb7fbc4f1cd34f94a557e2e03ae74f56d82469c07b6113c6ac4110e3571009ae74d54416877e036a
ripemd-160
d08e593cfe5a15caffa07171d889aca31d509500
Diameter
43085370
Circumference
135356681.8692
Area
1.4579731800767E+15
Volume
4.1878209275787E+22
Surface area
5.8318927203067E+15
Circumference
135356681.8692
Perimeter
86170740
Area
464087277009225
Diagonal
30465957.296931
Surface area
2784523662055350
Volume
9.9976860211175E+21
Space diagonal
37313024.951452
Perimeter
64628055
Area
2.0095568573157E+14
Altitude
18656512.475726
Surface area
2.0095568573157E+14
Volume
1.178238596951E+21
Height
10155319.098977