21051925 is an odd 8-digits composite number following 21051924
and preceding 21051926 . In scientific notation, it is written as 2.1051925 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 16841520 positive integers (up to 21051925) that are relatively prime to 21051925.
21051925 has 6 divisors, whose sum is 26104418
The reverse of 21051925 is 52915012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million fifty-one thousand nine hundred twenty-five
Scientific notation
2.1051925 × 10^7
Engineering notation
2.1051925 × 10^6
Prime Factorization
5 × 5 × 842077
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4210385
Product of the distinct prime numbers
The prime factorization of 21051925 is 5 × 5 × 842077.
Since it has a total of 3 prime factors.
8 , 9 , 34 , 82 , 130 , 896 , 1887 , 9706 , 95315 , 17638 , 929084 , 484291 , 9775783 , 5409784 , 52086675 , 6685076 , 720608533 , 310506386 , 9855206562 , 2427020384
n×2
42103850
n×3
63155775
n×4
84207700
n×5
105259625
n÷2
10525962.5
n÷3
7017308.3333333
n÷3
5262981.25
n÷5
4210385
n2
443183546205625
n3
9.3298667759549E+21
n4
1.9641165562739E+29
n5
4.1348434433937E+36
2 √n
4588.2376791095
3 √n
276.11962275929
4 √n
67.736531348376
5 √n
29.151329263661
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21051924
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21051925 can be divided by 6 positive divisors.
The sum of these divisors (counting 21051925) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000010011101000010101
3
Ternary
1110121112210221
4
Quaternary
1100103220111
5
Quinary
20342130200
6
Senary
2031114341
8
Octal
120235025
10
Decimal
21051925
12
Duodecimal
70729b1
16
Hexadecimal
1413a15
20
Vigesimal
6bb9g5
36
Base36
cj7rp
md5
c2142228eee443193317c8393738a638
sha1
2a2592716a7b603f1cdbdb8e12e5978b57972135
sha256
f22f3124a2fe152e309d2f17b60d90d2d79a55fbbcb99df4013c8a207f0ab2fd
sha512
058c4e7939987b4a587e9245ec40050d9e76e26379d1fdef3380bd147416b868d52515e75be554222bf98d15db5807dbfc6b0a3f191ad240bf995699133faf87
ripemd-160
bb837be44f95f7d7ad9922d3cb7cd8c088c9d5ec
Diameter
42103850
Circumference
132273145.84785
Area
1.3923021729515E+15
Volume
3.9080854563082E+22
Surface area
5.5692086918059E+15
Circumference
132273145.84785
Perimeter
84207700
Area
443183546205625
Diagonal
29771917.849061
Surface area
2659101277233750
Volume
9.3298667759549E+21
Space diagonal
36463003.697129
Perimeter
63155775
Area
1.9190410477667E+14
Altitude
18231501.848565
Surface area
1.9190410477667E+14
Volume
1.0995353441408E+21
Height
9923972.6163537