51689721 is an odd 8-digits composite number following 51689720
and preceding 51689722 . In scientific notation, it is written as 5.1689721 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 34459812 positive integers (up to 51689721) that are relatively prime to 51689721.
51689721 has 4 divisors, whose sum is 68919632
The reverse of 51689721 is 12798615
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
fifty-one million six hundred eighty-nine thousand seven hundred twenty-one
Scientific notation
5.1689721 × 10^7
Engineering notation
5.1689721 × 10^6
Prime Factorization
3 × 17229907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
51689721
Product of the distinct prime numbers
The prime factorization of 51689721 is 3 × 17229907.
Since it has a total of 2 prime factors.
2 , 6 , 81 , 1 , 83 , 4 , 3668 , 8807 , 91809 , 17932 , 803951 , 324166 , 4331569 , 5976259 , 28329981 , 75004732 , 220736800 , 586909973 , 9136681230 , 2120573771
n×2
103379442
n×3
155069163
n×4
206758884
n×5
258448605
n÷2
25844860.5
n÷3
17229907
n÷3
12922430.25
n÷5
10337944.2
n2
2671827257057841
n3
1.3810600547752E+23
n4
7.1386608915572E+30
n5
3.689953897982E+38
2 √n
7189.5563840894
3 √n
372.50724968249
4 √n
84.791251813435
5 √n
34.888382701779
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
-51689720
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 51689721 can be divided by 4 positive divisors.
The sum of these divisors (counting 51689721) is 1, the average is 0.25.
Base
System
Value
2
Binary
11000101001011100011111001
3
Ternary
10121021002222010
4
Quaternary
3011023203321
5
Quinary
101213032341
6
Senary
5043520133
8
Octal
305134371
10
Decimal
51689721
12
Duodecimal
15389049
16
Hexadecimal
314b8f9
20
Vigesimal
g31461
36
Base36
urw1l
md5
49d00416dee29ecfcca58d4fb7f572d6
sha1
535ce3ca9b8fb290dbebbeee94246367ce8b78a7
sha256
b4a2b4f67a716e4b8f5fa23117859f846e60ff82e612cbad1d443b40f19248e5
sha512
3f61f6eff2db170c17a697ed325571520461e06344501ee18b23c4b5f2aa8302d620b7f0e1ce4c2f50f7a84383989287ac0b307dac0ddf9579c8e51f38ca003f
ripemd-160
d0edbbd9e55c7da75f5c0b5414f535bdcd1dd938
Diameter
103379442
Circumference
324776095.51941
Area
8.3937928824339E+15
Volume
5.7849708296639E+23
Surface area
3.3575171529736E+16
Circumference
324776095.51941
Perimeter
206758884
Area
2671827257057841
Diagonal
73100304.473481
Surface area
16030963542347046
Volume
1.3810600547752E+23
Space diagonal
89529223.00106
Perimeter
155069163
Area
1.1569351395679E+15
Altitude
44764611.50053
Surface area
1.1569351395679E+15
Volume
1.6275948832623E+22
Height
24366768.157827