21051495 is an odd 8-digits composite number following 21051494
and preceding 21051496 . In scientific notation, it is written as 2.1051495 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 11024640 positive integers (up to 21051495) that are relatively prime to 21051495.
21051495 has 16 divisors, whose sum is 28788480
The reverse of 21051495 is 59415012
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million fifty-one thousand four hundred ninety-five
Scientific notation
2.1051495 × 10^7
Engineering notation
2.1051495 × 10^6
Prime Factorization
3 × 135 × 59 × 881
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21051495
Product of the distinct prime numbers
The prime factorization of 21051495 is 3 × 135 × 59 × 881.
Since it has a total of 4 prime factors.
6 , 4 , 93 , 32 , 780 , 173 , 8775 , 7709 , 79599 , 77417 , 536113 , 87330 , 800857 , 7836818 , 37715559 , 90249589 , 268596465 , 756296131 , 8639026756 , 5408378858
n×2
42102990
n×3
63154485
n×4
84205980
n×5
105257475
n÷2
10525747.5
n÷3
7017165
n÷3
5262873.75
n÷5
4210299
n2
443165441735025
n3
9.3292950808577E+21
n4
1.963956087482E+29
n5
4.1344211755847E+36
2 √n
4588.1908199202
3 √n
276.11774276896
4 √n
67.736185454454
5 √n
29.151210175511
1 , 3 , 59 , 135 , 177 , 405 , 881 , 2643 , 7965 , 23895 , 51979 , 118935 , 155937 , 356805 , 7017165 , 21051495
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21051494
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21051495 can be divided by 16 positive divisors.
The sum of these divisors (counting 21051495) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000010011100001100111
3
Ternary
1110121112020000
4
Quaternary
1100103201213
5
Quinary
20342121440
6
Senary
2031112343
8
Octal
120234147
10
Decimal
21051495
12
Duodecimal
70726b3
16
Hexadecimal
1413867
20
Vigesimal
6bb8ef
36
Base36
cj7fr
md5
6653a5a6976e526ff974816386acb3e0
sha1
0b44424d97def60551a9176d80dc92e19853567b
sha256
0e2d72a4625173f3e10e9f52a4605a11c43e06ba1217c410e15a52d915261f53
sha512
1b282758a19d4a678bc074e39243c690ce84cf5ed2e2d9122d5dfed2be4d65866ac29e48ae21e50175a50dd4a67b274245c232d1424c2c141e2651affdbd218e
ripemd-160
1d33a4e3d72a19414a4a03463434684b252c6b60
Diameter
42102990
Circumference
132270444.07816
Area
1.3922452960796E+15
Volume
3.9078459852258E+22
Surface area
5.5689811843185E+15
Circumference
132270444.07816
Perimeter
84205980
Area
443165441735025
Diagonal
29771309.737229
Surface area
2658992650410150
Volume
9.3292950808577E+21
Space diagonal
36462258.915282
Perimeter
63154485
Area
1.9189626531094E+14
Altitude
18231129.457641
Surface area
1.9189626531094E+14
Volume
1.0994679692275E+21
Height
9923769.9124098