21085937 is an odd 8-digits composite number following 21085936
and preceding 21085938 . In scientific notation, it is written as 2.1085937 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 20919780 positive integers (up to 21085937) that are relatively prime to 21085937.
21085937 has 4 divisors, whose sum is 21252096
The reverse of 21085937 is 73958012
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million eighty-five thousand nine hundred thirty-seven
Scientific notation
2.1085937 × 10^7
Engineering notation
2.1085937 × 10^6
Prime Factorization
127 × 166031
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21085937
Product of the distinct prime numbers
The prime factorization of 21085937 is 127 × 166031.
Since it has a total of 2 prime factors.
3 , 7 , 4 , 55 , 996 , 257 , 9117 , 9937 , 62006 , 71769 , 927363 , 841479 , 2960049 , 408465 , 76199792 , 73591177 , 585907878 , 775030037 , 1606832753 , 2369643069
n×2
42171874
n×3
63257811
n×4
84343748
n×5
105429685
n÷2
10542968.5
n÷3
7028645.6666667
n÷3
5271484.25
n÷5
4217187.4
n2
444616739167969
n3
9.3751605512412E+21
n4
1.9768404474836E+29
n5
4.1683533134691E+36
2 √n
4591.9426172373
3 √n
276.26824459944
4 √n
67.763873983394
5 √n
29.160742700941
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21085936
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21085937 can be divided by 4 positive divisors.
The sum of these divisors (counting 21085937) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011011111011110001
3
Ternary
1110200021110122
4
Quaternary
1100123323301
5
Quinary
20344222222
6
Senary
2031540025
8
Octal
120337361
10
Decimal
21085937
12
Duodecimal
708a615
16
Hexadecimal
141bef1
20
Vigesimal
6bfegh
36
Base36
cjy0h
md5
c87d6cc1a314d7e8d1721fcb79ee79f0
sha1
382007d3750f0994cfdfa91c35a2a21dd6739bde
sha256
c7f4cb9e90489c92a99bd9db250eea966aa7fbcba811e7604ee71123571ef27c
sha512
6dfa50df236d81504161915296461de38fb4eb5f95ad20deb37b111bee796db1aa8125f4cdde36fb5ea8511d5834d5a20511d6950af9aa20fec2fdfded345591
ripemd-160
b03444c3a82b3e8d18a436d9b3d29bbecdaad39c
Diameter
42171874
Circumference
132486849.54651
Area
1.3968046814331E+15
Volume
3.9270580685339E+22
Surface area
5.5872187257326E+15
Circumference
132486849.54651
Perimeter
84343748
Area
444616739167969
Diagonal
29820018.080745
Surface area
2667700435007814
Volume
9.3751605512412E+21
Space diagonal
36521914.209196
Perimeter
63257811
Area
1.9252469553363E+14
Altitude
18260957.104598
Surface area
1.9252469553363E+14
Volume
1.1048732667492E+21
Height
9940006.0269149