21028051 is an odd 8-digits composite number following 21028050
and preceding 21028052 . In scientific notation, it is written as 2.1028051 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 19116400 positive integers (up to 21028051) that are relatively prime to 21028051.
21028051 has 4 divisors, whose sum is 22939704
The reverse of 21028051 is 15082012
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million twenty-eight thousand fifty-one
Scientific notation
2.1028051 × 10^7
Engineering notation
2.1028051 × 10^6
Prime Factorization
11 × 1911641
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21028051
Product of the distinct prime numbers
The prime factorization of 21028051 is 11 × 1911641.
Since it has a total of 2 prime factors.
4 , 5 , 93 , 78 , 494 , 762 , 873 , 4051 , 80544 , 18083 , 931828 , 793751 , 1893097 , 5268380 , 60724017 , 71610459 , 84675336 , 353889726 , 2944817920 , 1583619327
n×2
42056102
n×3
63084153
n×4
84112204
n×5
105140255
n÷2
10514025.5
n÷3
7009350.3333333
n÷3
5257012.75
n÷5
4205610.2
n2
442178928858601
n3
9.298161067164E+21
n4
1.9552220512654E+29
n5
4.1114509010333E+36
2 √n
4585.6352885942
3 √n
276.01520517646
4 √n
67.717318970808
5 √n
29.144714431511
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
-21028050
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 21028051 can be divided by 4 positive divisors.
The sum of these divisors (counting 21028051) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001101110011010011
3
Ternary
1110120100001201
4
Quaternary
1100031303103
5
Quinary
20340344201
6
Senary
2030412031
8
Octal
120156323
10
Decimal
21028051
12
Duodecimal
7061017
16
Hexadecimal
140dcd3
20
Vigesimal
6b8a2b
36
Base36
cipcj
md5
f6d37efdd2ea8ad88c9c6519cceb24b3
sha1
837ca0c898ddf817640e960c1784f6cd12e605f0
sha256
587ce3d23887aaa1bf2c52b62b85a1251844615a831261f2026a437cb5cccebc
sha512
b59af523630dcc761385ae8de2b7976fb3184e9305b7a3efa26697592499e812920586ffdadbbd1125583a9afca2530e3c3baa1759b1765e3222b3d17d497554
ripemd-160
22e446bd8c19e1b8b79b47e52090068ee8e579af
Diameter
42056102
Circumference
132123141.08182
Area
1.3891460744744E+15
Volume
3.8948046000663E+22
Surface area
5.5565842978975E+15
Circumference
132123141.08182
Perimeter
84112204
Area
442178928858601
Diagonal
29738154.914473
Surface area
2653073573151606
Volume
9.298161067164E+21
Space diagonal
36421652.71615
Perimeter
63084153
Area
1.9146909270487E+14
Altitude
18210826.358075
Surface area
1.9146909270487E+14
Volume
1.0957987905261E+21
Height
9912718.3048244