21898945 is an odd 8-digits composite number following 21898944
and preceding 21898946 . In scientific notation, it is written as 2.1898945 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 17146224 positive integers (up to 21898945) that are relatively prime to 21898945.
21898945 has 8 divisors, whose sum is 26838144
The reverse of 21898945 is 54989812
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-one million eight hundred ninety-eight thousand nine hundred forty-five
Scientific notation
2.1898945 × 10^7
Engineering notation
2.1898945 × 10^6
Prime Factorization
5 × 47 × 93187
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21898945
Product of the distinct prime numbers
The prime factorization of 21898945 is 5 × 47 × 93187.
Since it has a total of 3 prime factors.
6 , 5 , 80 , 67 , 202 , 319 , 8000 , 2334 , 38684 , 84059 , 198045 , 549948 , 3310772 , 2311154 , 46943423 , 12531210 , 586955876 , 317113477 , 5055409317 , 5978365348
n×2
43797890
n×3
65696835
n×4
87595780
n×5
109494725
n÷2
10949472.5
n÷3
7299648.3333333
n÷3
5474736.25
n÷5
4379789
n2
479563792113025
n3
1.0501941107475E+22
n4
2.2998143070582E+29
n5
5.0363507020482E+36
2 √n
4679.6308615103
3 √n
279.77424404879
4 √n
68.40782748714
5 √n
29.382222189694
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
-21898944
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 21898945 can be divided by 8 positive divisors.
The sum of these divisors (counting 21898945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100010011011000001
3
Ternary
1112012120201001
4
Quaternary
1103202123001
5
Quinary
21101231240
6
Senary
2101212001
8
Octal
123423301
10
Decimal
21898945
12
Duodecimal
7401001
16
Hexadecimal
14e26c1
20
Vigesimal
6gh775
36
Base36
d1dc1
md5
e8858930050931fc92b5ab407cc6aa7b
sha1
f4cf00890f12ca9b75425d85e22e056ce84bf8e7
sha256
158836a37cf16946edf350025dd231522bc12a536cae845f6d07d7c31116854f
sha512
7d91f333acf146c4218271bda9128ecf4e9aa9b10e3bce75be637d4875949a79c4051bf48e6d55a551c7f98c757d370a7c0fb4fe77d334d9f87ac880f94fd7a6
ripemd-160
25c703ff3fc2e6241a1931f2b783138543b81d63
Diameter
43797890
Circumference
137595129.46673
Area
1.5065940862299E+15
Volume
4.3990428042233E+22
Surface area
6.0263763449198E+15
Circumference
137595129.46673
Perimeter
87595780
Area
479563792113025
Diagonal
30969785.020662
Surface area
2877382752678150
Volume
1.0501941107475E+22
Space diagonal
37930085.372156
Perimeter
65696835
Area
2.0765721335254E+14
Altitude
18965042.686078
Surface area
2.0765721335254E+14
Volume
1.2376656287862E+21
Height
10323261.673554