21081058 is an even 8-digits composite number following 21081057
and preceding 21081059 . In scientific notation, it is written as 2.1081058 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 10540528 positive integers (up to 21081058) that are relatively prime to 21081058.
21081058 has 4 divisors, whose sum is 31621590
The reverse of 21081058 is 85018012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eighty-one thousand fifty-eight
Scientific notation
2.1081058 × 10^7
Engineering notation
2.1081058 × 10^6
Prime Factorization
2 × 10540529
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21081058
Product of the distinct prime numbers
The prime factorization of 21081058 is 2 × 10540529.
Since it has a total of 2 prime factors.
3 , 6 , 22 , 31 , 711 , 117 , 2242 , 3627 , 63131 , 62775 , 605289 , 205287 , 2573980 , 9396206 , 98159264 , 96554572 , 845037334 , 820730151 , 9641035679 , 6984928222
n×2
42162116
n×3
63243174
n×4
84324232
n×5
105405290
n÷2
10540529
n÷3
7027019.3333333
n÷3
5270264.5
n÷5
4216211.6
n2
444411006399364
n3
9.3686542017434E+21
n4
1.975011426089E+29
n5
4.1635330424044E+36
2 √n
4591.4113298636
3 √n
276.24693471343
4 √n
67.759953732744
5 √n
29.159393095906
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
-21081057
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 21081058 can be divided by 4 positive divisors.
The sum of these divisors (counting 21081058) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011010101111100010
3
Ternary
1110200000202221
4
Quaternary
1100122233202
5
Quinary
20344043213
6
Senary
2031501254
8
Octal
120325742
10
Decimal
21081058
12
Duodecimal
708782a
16
Hexadecimal
141abe2
20
Vigesimal
6bf2ci
36
Base36
cju8y
md5
931c47b33cb1ef645adb127711f2dfba
sha1
3047578358fcce2f1e5cab5215054f7bdea88fe8
sha256
7384b3359fd96985e050ee533993c13d85ae33caeadef008997d84b0ed952713
sha512
0b78877b5d3abb35fbce22500c87071adec371bf5f1036ea10225a3c04ab19c889b0f582c6dfd8dcc57107eb2760fd72b4cb36b2cc8655002477287c2d30b33d
ripemd-160
1ee792f26e231a6c1eda86970da9176286fc5abd
Diameter
42162116
Circumference
132456193.8854
Area
1.3961583528787E+15
Volume
3.9243326952293E+22
Surface area
5.5846334115148E+15
Circumference
132456193.8854
Perimeter
84324232
Area
444411006399364
Diagonal
29813118.132774
Surface area
2666466038396184
Volume
9.3686542017434E+21
Space diagonal
36513463.533306
Perimeter
63243174
Area
1.9243561063163E+14
Altitude
18256731.766653
Surface area
1.9243561063163E+14
Volume
1.1041064861074E+21
Height
9937706.0442579