21086489 is an odd 8-digits composite number following 21086488
and preceding 21086490 . In scientific notation, it is written as 2.1086489 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 21069840 positive integers (up to 21086489) that are relatively prime to 21086489.
21086489 has 4 divisors, whose sum is 21103140
The reverse of 21086489 is 98468012
Previous prime number is 1381
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million eighty-six thousand four hundred eighty-nine
Scientific notation
2.1086489 × 10^7
Engineering notation
2.1086489 × 10^6
Prime Factorization
1381 × 15269
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21086489
Product of the distinct prime numbers
The prime factorization of 21086489 is 1381 × 15269.
Since it has a total of 2 prime factors.
5 , 5 , 86 , 47 , 520 , 820 , 943 , 872 , 89285 , 48866 , 459351 , 869911 , 3003313 , 218881 , 5591877 , 63553196 , 412475275 , 313535524 , 657269347 , 1774805514
n×2
42172978
n×3
63259467
n×4
84345956
n×5
105432445
n÷2
10543244.5
n÷3
7028829.6666667
n÷3
5271622.25
n÷5
4217297.8
n2
444640018347121
n3
9.3758968558364E+21
n4
1.9770474591573E+29
n5
4.1688989499998E+36
2 √n
4592.0027221246
3 √n
276.27065534901
4 √n
67.764317469629
5 √n
29.16089537674
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
-21086488
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 21086489 can be divided by 4 positive divisors.
The sum of these divisors (counting 21086489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011100000100011001
3
Ternary
1110200022020002
4
Quaternary
1100130010121
5
Quinary
20344231424
6
Senary
2031542345
8
Octal
120340431
10
Decimal
21086489
12
Duodecimal
708a9b5
16
Hexadecimal
141c119
20
Vigesimal
6bfg49
36
Base36
cjyft
md5
f75a142d9d65a1a73b262ece1caae539
sha1
94776d64378fb3aa67008591d0e869f0d0f208ce
sha256
5b61f542b10cb9f7e18acdd40afb158d45ebade65fa4600d4c3f1a6d442ccc73
sha512
096c4f7e3fc3df8409da1536314df60703759e70687348f997c9075dd72fa5698db58ebffc5d7f876d5b4ddee1dd6b7ff9ad2cfcc2eaf362c3f608ab239c9f49
ripemd-160
c6ffd55c07abf1edf0d76aedfc22a8a461fa452a
Diameter
42172978
Circumference
132490317.8648
Area
1.3968778151313E+15
Volume
3.9273664910815E+22
Surface area
5.5875112605254E+15
Circumference
132490317.8648
Perimeter
84345956
Area
444640018347121
Diagonal
29820798.726631
Surface area
2667840110082726
Volume
9.3758968558364E+21
Space diagonal
36522870.301242
Perimeter
63259467
Area
1.9253477571389E+14
Altitude
18261435.150621
Surface area
1.9253477571389E+14
Volume
1.1049600410779E+21
Height
9940266.2422104