21371947 is an odd 8-digits composite number following 21371946
and preceding 21371948 . In scientific notation, it is written as 2.1371947 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20850640 positive integers (up to 21371947) that are relatively prime to 21371947.
21371947 has 4 divisors, whose sum is 21893256
The reverse of 21371947 is 74917312
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million three hundred seventy-one thousand nine hundred forty-seven
Scientific notation
2.1371947 × 10^7
Engineering notation
2.1371947 × 10^6
Prime Factorization
41 × 521267
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21371947
Product of the distinct prime numbers
The prime factorization of 21371947 is 41 × 521267.
Since it has a total of 2 prime factors.
5 , 4 , 1 , 56 , 874 , 137 , 2355 , 4213 , 62090 , 75234 , 928550 , 921061 , 6406402 , 8277190 , 58511667 , 70333367 , 293313608 , 543113036 , 6781329109 , 8316783967
n×2
42743894
n×3
64115841
n×4
85487788
n×5
106859735
n÷2
10685973.5
n÷3
7123982.3333333
n÷3
5342986.75
n÷5
4274389.4
n2
456760118570809
n3
9.761853045809E+21
n4
2.0862980591682E+29
n5
4.4588251546746E+36
2 √n
4622.9803157703
3 √n
277.51174151547
4 √n
67.992501908448
5 √n
29.239424315498
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21371946
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21371947 can be divided by 4 positive divisors.
The sum of these divisors (counting 21371947) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100001110000101011
3
Ternary
1111012210210121
4
Quaternary
1101201300223
5
Quinary
20432400242
6
Senary
2042024111
8
Octal
121416053
10
Decimal
21371947
12
Duodecimal
71a8037
16
Hexadecimal
1461c2b
20
Vigesimal
6db9h7
36
Base36
cq2p7
md5
2818d51c813a4b096d691947f6c146aa
sha1
ffd2a63a43239d949d0482d895dd69ea9913855b
sha256
0b70c9504f7a402b22ee78620af01fbbedbb4843a63391b5af3a59268f6fd0ab
sha512
da06ae04fb823fdbb3e76a8109c0afb30a9ac20dd2c50764154d0298d16868535f59cf3f411afc9ec250e94d2266bb38657be1f043cb41d09001d84ac1adc135
ripemd-160
f0494f92fcf8e435ffcef301b1a8329ac658ac8b
Diameter
42743894
Circumference
134283903.37622
Area
1.4349542329549E+15
Volume
4.0890354418849E+22
Surface area
5.7398169318194E+15
Circumference
134283903.37622
Perimeter
85487788
Area
456760118570809
Diagonal
30224497.301719
Surface area
2740560711424854
Volume
9.761853045809E+21
Space diagonal
37017298.060669
Perimeter
64115841
Area
1.9778293305896E+14
Altitude
18508649.030335
Surface area
1.9778293305896E+14
Volume
1.150445414273E+21
Height
10074832.433906