21051750 is an even 8-digits composite number following 21051749
and preceding 21051751 . In scientific notation, it is written as 2.1051750 × 10^7.
The sum of its digits is 21. It has a total of 6 prime factors and 32 positive divisors.
There are 5613600 positive integers (up to 21051750) that are relatively prime to 21051750.
21051750 has 32 divisors, whose sum is 52547040
The reverse of 21051750 is 05715012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million fifty-one thousand seven hundred fifty
Scientific notation
2.1051750 × 10^7
Engineering notation
2.1051750 × 10^6
Prime Factorization
2 × 5 × 3 × 5 × 5 × 28069
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
842070
Product of the distinct prime numbers
The prime factorization of 21051750 is 2 × 5 × 3 × 5 × 5 × 28069.
Since it has a total of 6 prime factors.
4 , 3 , 74 , 89 , 200 , 479 , 9402 , 1787 , 28487 , 83037 , 785042 , 965700 , 6758968 , 2906919 , 40525733 , 75105265 , 176630743 , 884624437 , 430676465 , 668744903
n×2
42103500
n×3
63155250
n×4
84207000
n×5
105258750
n÷2
10525875
n÷3
7017250
n÷3
5262937.5
n÷5
4210350
n2
443176178062500
n3
9.3296341065272E+21
n4
1.9640512480208E+29
n5
4.1346715860523E+36
2 √n
4588.2186085669
3 √n
276.11885765004
4 √n
67.736390578233
5 √n
29.151280797788
1 , 2 , 3 , 5 , 6 , 10 , 15 , 25 , 30 , 50 , 75 , 125 , 150 , 250 , 375 , 750 , 28069 , 56138 , 84207 , 140345 , 168414 , 280690 , 421035 , 701725 , 842070 , 1403450 , 2105175 , 3508625 , 4210350 , 7017250 , 10525875 , 21051750
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
-21051749
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 21051750 can be divided by 32 positive divisors.
The sum of these divisors (counting 21051750) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000010011100101100110
3
Ternary
1110121112120110
4
Quaternary
1100103211212
5
Quinary
20342124000
6
Senary
2031113450
8
Octal
120234546
10
Decimal
21051750
12
Duodecimal
7072886
16
Hexadecimal
1413966
20
Vigesimal
6bb97a
36
Base36
cj7mu
md5
7bb74a446ee11891fbd2ecd6602a07a3
sha1
b190a2057d8c6ea39a3f82df2cec93f882ab28d5
sha256
17bab5a906e08322edcb7a2ff216073c83fee609bb4ec8e7600740b7f9b0f963
sha512
8d5674d2a447b58a0ae609aa3733dd51b5acd6c4b8be9a9d32ed2c04589dd96f14a78e914bbf02770829f5aae8a700cc6f6115e0065adf6e15712ef172d83da3
ripemd-160
1547441c437f01d5e293d997c157518c3cd46303
Diameter
42103500
Circumference
132272046.29042
Area
1.3922790252472E+15
Volume
3.9079879959662E+22
Surface area
5.5691161009886E+15
Circumference
132272046.29042
Perimeter
84207000
Area
443176178062500
Diagonal
29771670.361688
Surface area
2659057068375000
Volume
9.3296341065272E+21
Space diagonal
36462700.588238
Perimeter
63155250
Area
1.9190091427711E+14
Altitude
18231350.294119
Surface area
1.9190091427711E+14
Volume
1.0995079237858E+21
Height
9923890.1205626