21081310 is an even 8-digits composite number following 21081309
and preceding 21081311 . In scientific notation, it is written as 2.1081310 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 8420256 positive integers (up to 21081310) that are relatively prime to 21081310.
21081310 has 16 divisors, whose sum is 38001600
The reverse of 21081310 is 01318012
Previous prime number is 2029
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million eighty-one thousand three hundred ten
Scientific notation
2.1081310 × 10^7
Engineering notation
2.1081310 × 10^6
Prime Factorization
2 × 5 × 2029 × 1039
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21081310
Product of the distinct prime numbers
The prime factorization of 21081310 is 2 × 5 × 2029 × 1039.
Since it has a total of 4 prime factors.
8 , 10 , 34 , 20 , 576 , 800 , 4339 , 7680 , 8362 , 26919 , 276639 , 592955 , 1929537 , 2563511 , 87439910 , 73200329 , 130523334 , 588658198 , 3730144991 , 8095921344
n×2
42162620
n×3
63243930
n×4
84325240
n×5
105406550
n÷2
10540655
n÷3
7027103.3333333
n÷3
5270327.5
n÷5
4216262
n2
444421631316100
n3
9.3689901804804E+21
n4
1.9751058638166E+29
n5
4.1637818997936E+36
2 √n
4591.438772324
3 √n
276.24803544804
4 √n
67.760156230074
5 √n
29.159462809029
1 , 2 , 5 , 10 , 1039 , 2029 , 2078 , 4058 , 5195 , 10145 , 10390 , 20290 , 2108131 , 4216262 , 10540655 , 21081310
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
-21081309
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 21081310 can be divided by 16 positive divisors.
The sum of these divisors (counting 21081310) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011010110011011110
3
Ternary
1110200001010021
4
Quaternary
1100122303132
5
Quinary
20344100220
6
Senary
2031502354
8
Octal
120326336
10
Decimal
21081310
12
Duodecimal
70879ba
16
Hexadecimal
141acde
20
Vigesimal
6bf35a
36
Base36
cjufy
md5
76a24288c368d6117ac1986e8334de7d
sha1
30e7f0ae63533ea36ecec53ee97db503301e0f64
sha256
aa9aa339a1c72f667307babf1d8e0173d59c07541319306dd710dde02f96615b
sha512
105212dab9aaa500fd0ba77b0d449cdfa8c36311468fdae925a03515795d30eb18c40e5e4ede31b4c02922173daeb709a839a80819512ad95fafa2aa98537e94
ripemd-160
f0319e02a0307594d5ed082ac98b05b7e476bb2d
Diameter
42162620
Circumference
132457777.2481
Area
1.3961917320391E+15
Volume
3.9244734296736E+22
Surface area
5.5847669281562E+15
Circumference
132457777.2481
Perimeter
84325240
Area
444421631316100
Diagonal
29813474.514592
Surface area
2666529787896600
Volume
9.3689901804804E+21
Space diagonal
36513900.01011
Perimeter
63243930
Area
1.9244021135553E+14
Altitude
18256950.005055
Surface area
1.9244021135553E+14
Volume
1.1041460815813E+21
Height
9937824.8381972