21347891 is an odd 8-digits composite number following 21347890
and preceding 21347892 . In scientific notation, it is written as 2.1347891 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 20973160 positive integers (up to 21347891) that are relatively prime to 21347891.
21347891 has 8 divisors, whose sum is 21726144
The reverse of 21347891 is 19874312
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million three hundred forty-seven thousand eight hundred ninety-one
Scientific notation
2.1347891 × 10^7
Engineering notation
2.1347891 × 10^6
Prime Factorization
107 × 131 × 1523
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21347891
Product of the distinct prime numbers
The prime factorization of 21347891 is 107 × 131 × 1523.
Since it has a total of 3 prime factors.
6 , 10 , 67 , 69 , 77 , 222 , 486 , 7933 , 35519 , 9902 , 235680 , 842299 , 3066020 , 4545725 , 93621881 , 21228944 , 474621793 , 111456011 , 8869619721 , 7212149613
n×2
42695782
n×3
64043673
n×4
85391564
n×5
106739455
n÷2
10673945.5
n÷3
7115963.6666667
n÷3
5336972.75
n÷5
4269578.2
n2
455732450147881
n3
9.7289266709199E+21
n4
2.0769206611779E+29
n5
4.4337875890474E+36
2 √n
4620.3777984057
3 √n
277.40758116043
4 √n
67.973360946813
5 √n
29.232839042819
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
-21347890
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 21347891 can be divided by 8 positive divisors.
The sum of these divisors (counting 21347891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011011111000110011
3
Ternary
1111011120210122
4
Quaternary
1101123320303
5
Quinary
20431113031
6
Senary
2041320455
8
Octal
121337063
10
Decimal
21347891
12
Duodecimal
719612b
16
Hexadecimal
145be33
20
Vigesimal
6d89eb
36
Base36
cpk4z
md5
8f580cee5171838ded562623ebae5c06
sha1
e71233486a02c1d14d1067fcac4ce27833fa243b
sha256
a05b1027ed0f57fc1000ae0bc154f586b733d26590d9aea363e99827e3688229
sha512
e7415adb348a7696dbd08d9a25aa20aded41e4dda0013377afea3905b1f8bf886017a1c424ffafcea2e1c311ec374cae4c567a097a69cfb6f7e99855fb9f039e
ripemd-160
6c0a7cea141c099a8c875c1551136e6075aefd38
Diameter
42695782
Circumference
134132755.07047
Area
1.4317257173871E+15
Volume
4.0752432742234E+22
Surface area
5.7269028695482E+15
Circumference
134132755.07047
Perimeter
85391564
Area
455732450147881
Diagonal
30190476.980263
Surface area
2734394700887286
Volume
9.7289266709199E+21
Space diagonal
36975631.846442
Perimeter
64043673
Area
1.973379395785E+14
Altitude
18487815.923221
Surface area
1.973379395785E+14
Volume
1.146565003779E+21
Height
10063492.326754