21293989 is an odd 8-digits prime number following 21293988
and preceding 21293990 . In scientific notation, it is written as 2.1293989 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 21293988 positive integers (up to 21293989) that are relatively prime to 21293989.
21293989 has 2 divisors, whose sum is 21293990
The reverse of 21293989 is 98939212
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
twenty-one million two hundred ninety-three thousand nine hundred eighty-nine
Scientific notation
2.1293989 × 10^7
Engineering notation
2.1293989 × 10^6
Prime Factorization
21293989
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21293989 Product of the distinct prime numbers
The prime factorization of 21293989 is 21293989.
Since it has a total of 1 prime factors.
2 , 8 , 26 , 90 , 757 , 283 , 1929 , 2923 , 81095 , 91085 , 705965 , 89149 , 5812438 , 5954506 , 3788358 , 14712575 , 577274029 , 119076568 , 6675044521 , 6158874092
n×2
42587978
n×3
63881967
n×4
85175956
n×5
106469945
n÷2
10646994.5
n÷3
7097996.3333333
n÷3
5323497.25
n÷5
4258797.8
n2
453433967532121
n3
9.6554179168553E+21
n4
2.0560236291192E+29
n5
4.3780944542204E+36
2 √n4614.5410389333
3 √n277.17390583573
4 √n67.930413210383
5 √n29.218061917259
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21293990 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10646995 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4614.5411472865 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999060768 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21293989 can be divided by 2 positive divisors.
The sum of these divisors (counting 21293989) is 21293990, the average is 10646995.
Base
System
Value
2
Binary
1010001001110101110100101
3
Ternary
1111001211212021
4
Quaternary
1101032232211
5
Quinary
20422401424
6
Senary
2040223141
8
Octal
121165645
10
Decimal
21293989
12
Duodecimal
716aab1
16
Hexadecimal
144eba5
20
Vigesimal
6d1ej9
36
Base36
coejp
md5
2894f799d669081c517827b2bb4e0a77
sha1
eb956d22370f982d68bf9aa419602fde28a522c2
sha256
1ae68a3a0766648e8bcf65d15faa5a6ac9d741faf85980e952b9a802921b1ebe
sha512
5ce81ea17f9d2fd3e7545b633ac33ce98c0a6d36af37e5ba8030d2eb802d970e4fda7248cbb6f2c98e6d40c6f594c4480b607a4d262667e553ecf30496bb50a3
ripemd-160
e983de37a395dd74d5ee70fe225e35206858f4a4
Diameter
42587978
Circumference
133794078.81604
Area
1.424504821287E+15
Volume
4.0444519993243E+22
Surface area
5.6980192851479E+15
Circumference
133794078.81604
Perimeter
85175956
Area
453433967532121
Diagonal
30114248.040824
Surface area
2720603805192726
Volume
9.6554179168553E+21
Space diagonal
36882270.843813
Perimeter
63881967
Area
1.9634266741079E+14
Altitude
18441135.421906
Surface area
1.9634266741079E+14
Volume
1.1379019140331E+21
Height
10038082.680275