21085718 is an even 8-digits composite number following 21085717
and preceding 21085719 . In scientific notation, it is written as 2.1085718 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 10535616 positive integers (up to 21085718) that are relatively prime to 21085718.
21085718 has 8 divisors, whose sum is 31650312
The reverse of 21085718 is 81758012
Previous prime number is 2017
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-five thousand seven hundred eighteen
Scientific notation
2.1085718 × 10^7
Engineering notation
2.1085718 × 10^6
Prime Factorization
2 × 2017 × 5227
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21085718
Product of the distinct prime numbers
The prime factorization of 21085718 is 2 × 2017 × 5227.
Since it has a total of 3 prime factors.
4 , 9 , 34 , 75 , 188 , 940 , 4261 , 1314 , 77400 , 6583 , 398451 , 960254 , 703520 , 4318844 , 40399103 , 67116457 , 179097708 , 848344817 , 5760586496 , 3235697120
n×2
42171436
n×3
63257154
n×4
84342872
n×5
105428590
n÷2
10542859
n÷3
7028572.6666667
n÷3
5271429.5
n÷5
4217143.6
n2
444607503575524
n3
9.3748684410775E+21
n4
1.9767583223566E+29
n5
4.1681368539364E+36
2 √n
4591.9187710586
3 √n
276.2672881491
4 √n
67.763698032638
5 √n
29.160682127591
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
-21085717
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 21085718 can be divided by 8 positive divisors.
The sum of these divisors (counting 21085718) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011111000010110
3
Ternary
1110200021011112
4
Quaternary
1100123320112
5
Quinary
20344220333
6
Senary
2031535022
8
Octal
120337026
10
Decimal
21085718
12
Duodecimal
708a472
16
Hexadecimal
141be16
20
Vigesimal
6bfe5i
36
Base36
cjxue
md5
e54dae03f4f29afd8fc6aed45e1bed7c
sha1
32a036199ad67932dbb71f98d395018340961d2a
sha256
a3768b7998f1a3e4e905ac9a6baf1f6102ecdbba8df2986f8ca8dcdcd5d55d7d
sha512
d14f275c1125cfe7863bcbbf287cc1183e2ca20918b949bdff1fb6b467fa88f01b5179ba7501ba870d6d5a38c69d580a9be3aefbf0c9e6d2655b95ba8e50ce97
ripemd-160
95ed5fad8ff399657f5c001da377cd9f42dee209
Diameter
42171436
Circumference
132485473.52893
Area
1.3967756669638E+15
Volume
3.9269357097146E+22
Surface area
5.5871026678551E+15
Circumference
132485473.52893
Perimeter
84342872
Area
444607503575524
Diagonal
29819708.367974
Surface area
2667645021453144
Volume
9.3748684410775E+21
Space diagonal
36521534.89007
Perimeter
63257154
Area
1.9252069640479E+14
Altitude
18260767.445035
Surface area
1.9252069640479E+14
Volume
1.1048388412363E+21
Height
9939902.7893248