21051749 is an odd 8-digits prime number following 21051748
and preceding 21051750 . In scientific notation, it is written as 2.1051749 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 21051748 positive integers (up to 21051749) that are relatively prime to 21051749.
21051749 has 2 divisors, whose sum is 21051750
The reverse of 21051749 is 94715012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million fifty-one thousand seven hundred forty-nine
Scientific notation
2.1051749 × 10^7
Engineering notation
2.1051749 × 10^6
Prime Factorization
21051749
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21051749
Product of the distinct prime numbers
The prime factorization of 21051749 is 21051749.
Since it has a total of 1 prime factors.
10 , 6 , 70 , 7 , 696 , 648 , 9665 , 3766 , 43600 , 25505 , 995020 , 770555 , 1619569 , 9684088 , 71791785 , 81492489 , 197404790 , 375871820 , 482213627 , 1825458857
n×2
42103498
n×3
63155247
n×4
84206996
n×5
105258745
n÷2
10525874.5
n÷3
7017249.6666667
n÷3
5262937.25
n÷5
4210349.8
n2
443176135959001
n3
9.3296327769988E+21
n4
1.9640508748355E+29
n5
4.1346706040268E+36
2 √n
4588.2184995922
3 √n
276.11885327797
4 √n
67.73638977383
5 √n
29.15128052084
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21051750
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10525875
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4588.2186085669
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999904996
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21051749 can be divided by 2 positive divisors.
The sum of these divisors (counting 21051749) is 21051750, the average is 10525875.
Base
System
Value
2
Binary
1010000010011100101100101
3
Ternary
1110121112120102
4
Quaternary
1100103211211
5
Quinary
20342123444
6
Senary
2031113445
8
Octal
120234545
10
Decimal
21051749
12
Duodecimal
7072885
16
Hexadecimal
1413965
20
Vigesimal
6bb979
36
Base36
cj7mt
md5
be787d12c3f8701dbbbec30712b1a285
sha1
789379e4232effa6e72e50cbc7403aa2587330bd
sha256
d201c1f8a34d58bc13c1617cf4423609cd268c5f5cd6dbcbd23aa48401ed02b5
sha512
2076611f65162f503243ae4989d87668b8fed84a3e41322d591288ea5ee80c81f12bf398009a4cea3202a5d9e6ef1f5a8a284c705f6aaaa9796783447e8aefda
ripemd-160
5f19716dc27f45cae2c7eb6757e3a7c2a43fed19
Diameter
42103498
Circumference
132272040.00723
Area
1.3922788929751E+15
Volume
3.9079874390546E+22
Surface area
5.5691155719004E+15
Circumference
132272040.00723
Perimeter
84206996
Area
443176135959001
Diagonal
29771668.947474
Surface area
2659056815754006
Volume
9.3296327769988E+21
Space diagonal
36462698.856187
Perimeter
63155247
Area
1.9190089604576E+14
Altitude
18231349.428094
Surface area
1.9190089604576E+14
Volume
1.0995077670994E+21
Height
9923889.6491581