66721000 is an even 8-digits composite number following 66720999
and preceding 66721001 . In scientific notation, it is written as 6.6721000 × 10^7.
The sum of its digits is 22. It has a total of 6 prime factors and 32 positive divisors.
There are 26688000 positive integers (up to 66721000) that are relatively prime to 66721000.
66721000 has 32 divisors, whose sum is 156129480
The reverse of 66721000 is 00012766
Previous prime number is 25
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
sixty-six million seven hundred twenty-one thousand
Scientific notation
6.6721000 × 10^7
Engineering notation
6.6721000 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 25 × 66721
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
16680250
Product of the distinct prime numbers
The prime factorization of 66721000 is 2 × 2 × 2 × 5 × 25 × 66721.
Since it has a total of 6 prime factors.
5 , 7 , 82 , 89 , 812 , 520 , 3207 , 5590 , 57191 , 41910 , 52417 , 51952 , 940020 , 4401542 , 53892365 , 53845690 , 153772230 , 555470529 , 3463184987 , 5842595382
n×2
133442000
n×3
200163000
n×4
266884000
n×5
333605000
n÷2
33360500
n÷3
22240333.333333
n÷3
16680250
n÷5
13344200
n2
4451691841000000
n3
2.9702133132336E+23
n4
1.9817560247226E+31
n5
1.3222474372552E+39
2 √n
8168.2923551989
3 √n
405.59025856235
4 √n
90.378605627653
5 √n
36.715758902445
1 , 2 , 4 , 5 , 8 , 10 , 20 , 25 , 40 , 50 , 100 , 125 , 200 , 250 , 500 , 1000 , 66721 , 133442 , 266884 , 333605 , 533768 , 667210 , 1334420 , 1668025 , 2668840 , 3336050 , 6672100 , 8340125 , 13344200 , 16680250 , 33360500 , 66721000
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
-66720999
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 66721000 can be divided by 32 positive divisors.
The sum of these divisors (counting 66721000) is 1, the average is 0.03125.
Base
System
Value
2
Binary
11111110100001010011101000
3
Ternary
11122112210000011
4
Quaternary
3332201103220
5
Quinary
114040033000
6
Senary
10342021304
8
Octal
376412350
10
Decimal
66721000
12
Duodecimal
1a417834
16
Hexadecimal
3fa14e8
20
Vigesimal
10h02a0
36
Base36
13q294
md5
f6d179d02975b0a07db743cfd5113e96
sha1
4c7a4dbe5807a943431cbca4c4ebe55a62c6e1cf
sha256
5a059e31ecabcf48a3ecffd8c02e299e3c3cb201b33405dc640d10afc66e3cb4
sha512
151522b06ff1fba014202cf908754f34611a00f8fbf033c4dff9cf6a4d0e7aeb84ee3e70fe6175bb636991c4f8eaa4ac59f11c95788c343f02072d2a01bd8678
ripemd-160
d8c2e7183276932a55150ef573951cdcb0d5708f
Diameter
133442000
Circumference
419220406.88033
Area
1.3985402383731E+16
Volume
1.2441600432599E+24
Surface area
5.5941609534925E+16
Circumference
419220406.88033
Perimeter
266884000
Area
4451691841000000
Diagonal
94357743.095095
Surface area
26710151046000000
Volume
2.9702133132336E+23
Space diagonal
115564161.9318
Perimeter
200163000
Area
1.927639112063E+15
Altitude
57782080.965902
Surface area
1.927639112063E+15
Volume
3.5004299589301E+22
Height
31452581.031698