21001839 is an odd 8-digits composite number following 21001838
and preceding 21001840 . In scientific notation, it is written as 2.1001839 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13862400 positive integers (up to 21001839) that are relatively prime to 21001839.
21001839 has 8 divisors, whose sum is 28280112
The reverse of 21001839 is 93810012
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million one thousand eight hundred thirty-nine
Scientific notation
2.1001839 × 10^7
Engineering notation
2.1001839 × 10^6
Prime Factorization
3 × 101 × 69313
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21001839
Product of the distinct prime numbers
The prime factorization of 21001839 is 3 × 101 × 69313.
Since it has a total of 3 prime factors.
6 , 3 , 70 , 59 , 980 , 447 , 1627 , 4092 , 41112 , 23333 , 48584 , 296772 , 9108427 , 8226207 , 24586593 , 47703010 , 589643566 , 738320856 , 7240103152 , 7089517656
n×2
42003678
n×3
63005517
n×4
84007356
n×5
105009195
n÷2
10500919.5
n÷3
7000613
n÷3
5250459.75
n÷5
4200367.8
n2
441077241381921
n3
9.2634332100672E+21
n4
1.9454913286509E+29
n5
4.0858895660221E+36
2 √n
4582.7763419133
3 √n
275.90047083409
4 √n
67.696206259386
5 √n
29.137444880485
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
-21001838
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 21001839 can be divided by 8 positive divisors.
The sum of these divisors (counting 21001839) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111011001101111
3
Ternary
1110112000002220
4
Quaternary
1100013121233
5
Quinary
20334024324
6
Senary
2030050423
8
Octal
120073157
10
Decimal
21001839
12
Duodecimal
7049a13
16
Hexadecimal
140766f
20
Vigesimal
6b54bj
36
Base36
ci54f
md5
b260d87bdc251daa102cf849d7314f42
sha1
0e15571d933c7c754501cd20319cc5f18b2ee3cd
sha256
258aa989b296079c8e20138abb20f80351f8088faae81b93ad20729afcb12e70
sha512
94a5a29bf2831dbfe8009f759ba6add2a1a2cd1c1a22539a8411cd370dcd914ae8a0ef4c22e9cbe878c15287c6d157007099080622bfc9be7187ee2672ea1896
ripemd-160
3fe8ffaf992747b0f4a95b9ef7608d64f27dba5c
Diameter
42003678
Circumference
131958446.22855
Area
1.3856850211911E+15
Volume
3.8802578293023E+22
Surface area
5.5427400847644E+15
Circumference
131958446.22855
Perimeter
84007356
Area
441077241381921
Diagonal
29701085.548576
Surface area
2646463448291526
Volume
9.2634332100672E+21
Space diagonal
36376252.200382
Perimeter
63005517
Area
1.9099204803395E+14
Altitude
18188126.100191
Surface area
1.9099204803395E+14
Volume
1.0917060733179E+21
Height
9900361.8495254