21371855 is an odd 8-digits composite number following 21371854
and preceding 21371856 . In scientific notation, it is written as 2.1371855 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17008128 positive integers (up to 21371855) that are relatively prime to 21371855.
21371855 has 8 divisors, whose sum is 25780272
The reverse of 21371855 is 55817312
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million three hundred seventy-one thousand eight hundred fifty-five
Scientific notation
2.1371855 × 10^7
Engineering notation
2.1371855 × 10^6
Prime Factorization
5 × 193 × 22147
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21371855
Product of the distinct prime numbers
The prime factorization of 21371855 is 5 × 193 × 22147.
Since it has a total of 3 prime factors.
10 , 8 , 72 , 3 , 94 , 158 , 3784 , 4163 , 78581 , 92873 , 717114 , 696690 , 145358 , 4795499 , 53902239 , 58934019 , 394428224 , 660856342 , 714239393 , 2205420963
n×2
42743710
n×3
64115565
n×4
85487420
n×5
106859275
n÷2
10685927.5
n÷3
7123951.6666667
n÷3
5342963.75
n÷5
4274371
n2
456756186141025
n3
9.761726980559E+21
n4
2.0862621357809E+29
n5
4.4587291857901E+36
2 √n
4622.9703654685
3 √n
277.51134331252
4 √n
67.992428736356
5 √n
29.239399142016
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
-21371854
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 21371855 can be divided by 8 positive divisors.
The sum of these divisors (counting 21371855) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001100001101111001111
3
Ternary
1111012210200012
4
Quaternary
1101201233033
5
Quinary
20432344410
6
Senary
2042023435
8
Octal
121415717
10
Decimal
21371855
12
Duodecimal
71a7b7b
16
Hexadecimal
1461bcf
20
Vigesimal
6db9cf
36
Base36
cq2mn
md5
927adc20e369aed5534ed5e8a5499586
sha1
5d56944c93cc67b5bb92fb737882ceb112544636
sha256
9a3ffcfdd14102c11818ebaa15f19036146281ccefca26b004d2c7fc06acc411
sha512
c70b4dc048fd621bad6d578189bd4f4a1f892657e4479def31b6961a1577963e42928c7e7d75e33942684a0065d0e71926767d050c7b73b000a690d3bf45f1ce
ripemd-160
909ec5686d7952bd38f7a6ebc6da05be4db116bf
Diameter
42743710
Circumference
134283325.32317
Area
1.4349418788623E+15
Volume
4.0889826357965E+22
Surface area
5.7397675154493E+15
Circumference
134283325.32317
Perimeter
85487420
Area
456756186141025
Diagonal
30224367.194071
Surface area
2740537116846150
Volume
9.761726980559E+21
Space diagonal
37017138.711995
Perimeter
64115565
Area
1.9778123026691E+14
Altitude
18508569.355997
Surface area
1.9778123026691E+14
Volume
1.1504305573408E+21
Height
10074789.06469