21271880 is an even 8-digits composite number following 21271879
and preceding 21271881 . In scientific notation, it is written as 2.1271880 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 16 positive divisors.
There are 7292544 positive integers (up to 21271880) that are relatively prime to 21271880.
21271880 has 16 divisors, whose sum is 40051260
The reverse of 21271880 is 08817212
Previous prime number is 245
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million two hundred seventy-one thousand eight hundred eighty
Scientific notation
2.1271880 × 10^7
Engineering notation
2.1271880 × 10^6
Prime Factorization
2 × 2 × 2 × 245 × 10853
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5317970
Product of the distinct prime numbers
The prime factorization of 21271880 is 2 × 2 × 2 × 245 × 10853.
Since it has a total of 5 prime factors.
3 , 1 , 87 , 18 , 481 , 663 , 584 , 8368 , 81159 , 90617 , 279578 , 235609 , 8880377 , 9394893 , 66499860 , 97346452 , 158288584 , 686634282 , 1264776433 , 3363879489
n×2
42543760
n×3
63815640
n×4
85087520
n×5
106359400
n÷2
10635940
n÷3
7090626.6666667
n÷3
5317970
n÷5
4254376
n2
452492878734400
n3
9.6253742172927E+21
n4
2.0474980530534E+29
n5
4.3554132884786E+36
2 √n
4612.1448372747
3 √n
277.07794510913
4 √n
67.912773741578
5 √n
29.211992123752
1 , 2 , 4 , 8 , 245 , 490 , 980 , 1960 , 10853 , 21706 , 43412 , 86824 , 2658985 , 5317970 , 10635940 , 21271880
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21271879
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21271880 can be divided by 16 positive divisors.
The sum of these divisors (counting 21271880) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001001001010101001000
3
Ternary
1111000201112102
4
Quaternary
1101021111020
5
Quinary
20421200010
6
Senary
2035532532
8
Octal
121112510
10
Decimal
21271880
12
Duodecimal
715a148
16
Hexadecimal
1449548
20
Vigesimal
6cije0
36
Base36
cnxhk
md5
488150c831852058821c2df9eb4c37c1
sha1
6e2b372dfde0cb1efef476b7e7215a0d0bc15559
sha256
c2915226dade8f206f99322528d0c73e509b633473ea01db24f7353ee2d64ab9
sha512
828d03791bb49c5c2bf13810a2c12833f89fe3e64edddc455a6102658c0136a68a830af1c6bf4396234df5e9de7404600ead27399c68406ccf0e6e2196481e53
ripemd-160
43b253a95bd596fb4b857e7e97565eadfd4f13e4
Diameter
42543760
Circumference
133655163.87209
Area
1.4215483036337E+15
Volume
4.0318673238799E+22
Surface area
5.6861932145348E+15
Circumference
133655163.87209
Perimeter
85087520
Area
452492878734400
Diagonal
30082981.193173
Surface area
2714957272406400
Volume
9.6253742172927E+21
Space diagonal
36843976.932508
Perimeter
63815640
Area
1.9593516400777E+14
Altitude
18421988.466254
Surface area
1.9593516400777E+14
Volume
1.1343612300843E+21
Height
10027660.397724