21061810 is an even 8-digits composite number following 21061809
and preceding 21061811 . In scientific notation, it is written as 2.1061810 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 32 positive divisors.
There are 6174720 positive integers (up to 21061810) that are relatively prime to 21061810.
21061810 has 32 divisors, whose sum is 40687920
The reverse of 21061810 is 01816012
Previous prime number is 77
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million sixty-one thousand eight hundred ten
Scientific notation
2.1061810 × 10^7
Engineering notation
2.1061810 × 10^6
Prime Factorization
2 × 17 × 5 × 77 × 1609
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21061810
Product of the distinct prime numbers
The prime factorization of 21061810 is 2 × 17 × 5 × 77 × 1609.
Since it has a total of 5 prime factors.
6 , 5 , 32 , 3 , 769 , 20 , 7762 , 950 , 33714 , 54041 , 458511 , 837544 , 9333922 , 6147405 , 91163562 , 48053487 , 423836478 , 533585823 , 1871874596 , 195631957
n×2
42123620
n×3
63185430
n×4
84247240
n×5
105309050
n÷2
10530905
n÷3
7020603.3333333
n÷3
5265452.5
n÷5
4212362
n2
443599840476100
n3
9.3430155561379E+21
n4
1.9678081847042E+29
n5
4.1445602102685E+36
2 √n
4589.3147636657
3 √n
276.16283361968
4 √n
67.744481425912
5 √n
29.154066369957
1 , 2 , 5 , 10 , 17 , 34 , 77 , 85 , 154 , 170 , 385 , 770 , 1309 , 1609 , 2618 , 3218 , 6545 , 8045 , 13090 , 16090 , 27353 , 54706 , 123893 , 136765 , 247786 , 273530 , 619465 , 1238930 , 2106181 , 4212362 , 10530905 , 21061810
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21061809
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21061810 can be divided by 32 positive divisors.
The sum of these divisors (counting 21061810) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000010110000010110010
3
Ternary
1110122001101001
4
Quaternary
1100112002302
5
Quinary
20342434220
6
Senary
2031232214
8
Octal
120260262
10
Decimal
21061810
12
Duodecimal
707866a
16
Hexadecimal
14160b2
20
Vigesimal
6bceaa
36
Base36
cjfea
md5
f0cb38f80a49acb10e939249632d9ee8
sha1
528a6ba23e505716afa6f3c25a2414602c3ea371
sha256
89fd8c703e9ad0c9efd2ecc2643270982c8c9837db1872d6fe971c9f29aa99b2
sha512
75b824aed7adc82d7625a2cb28cdcd3ebb847843128a1135782d7685744954db02cb034a6cafadfd999d7b0073556fc56d95478c3e3abb5c659ba1cb68810274
ripemd-160
08e8b9c57883d5bad499ae547d5fb8b4d56a133d
Diameter
42123620
Circumference
132335255.13461
Area
1.3936099999733E+15
Volume
3.9135932044717E+22
Surface area
5.5744399998933E+15
Circumference
132335255.13461
Perimeter
84247240
Area
443599840476100
Diagonal
29785897.350125
Surface area
2661599042856600
Volume
9.3430155561379E+21
Space diagonal
36480125.019362
Perimeter
63185430
Area
1.9208436548351E+14
Altitude
18240062.509681
Surface area
1.9208436548351E+14
Volume
1.1010849427461E+21
Height
9928632.4500418