6445156721 is an odd 10-digits composite number following 6445156720
and preceding 6445156722 . In scientific notation, it is written as 6.445156721 × 10^9.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 6441920832 positive integers (up to 6445156721) that are relatively prime to 6445156721.
6445156721 has 4 divisors, whose sum is 6448392612
The reverse of 6445156721 is 1276515446
Previous prime number is 1993
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 41
Digital Root 5
Name
six billion four hundred forty-five million one hundred fifty-six thousand seven hundred twenty-one
Scientific notation
6.445156721 × 10^9
Engineering notation
6.445156721 × 10^9
Prime Factorization
1993 × 3233897
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
6445156721
Product of the distinct prime numbers
The prime factorization of 6445156721 is 1993 × 3233897.
Since it has a total of 2 prime factors.
1 , 8 , 70 , 59 , 816 , 197 , 9291 , 9207 , 30786 , 87265 , 28685 , 566915 , 5740091 , 8251662 , 40980741 , 6869856 , 169017045 , 183188435 , 8041486804 , 8242899130
n×2
12890313442
n×3
19335470163
n×4
25780626884
n×5
32225783605
n÷2
3222578360.5
n÷3
2148385573.6667
n÷3
1611289180.25
n÷5
1289031344.2
n2
4.1540045158251E+19
n3
2.6773210124235E+29
n4
1.7255753517496E+39
n5
1.1121603575921E+49
2 √n
80281.733420499
3 √n
1860.9919479634
4 √n
283.34031379332
5 √n
91.589712639519
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
-6445156720
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 6445156721 can be divided by 4 positive divisors.
The sum of these divisors (counting 6445156721) is 1, the average is 0.25.
Base
System
Value
2
Binary
110000000001010010100100101110001
3
Ternary
121122011200212220012
4
Quaternary
12000022110211301
5
Quinary
101144430003341
6
Senary
2543314024305
8
Octal
60012244561
10
Decimal
6445156721
12
Duodecimal
12ba578095
16
Hexadecimal
180294971
20
Vigesimal
50e24bg1
36
Base36
2yla2r5
md5
ed0322441afbaadcd8a6811258686e79
sha1
968e49a80d23dd759119110aadb7fae30fae87f3
sha256
cfdf5f0c153ae83465723d2f9c67cabd4be823559658ac812036e59c69164c43
sha512
ee039d4393c0624d1a5175d63ee952a12815909a42a65a21c10cabb4572b74acb554f51793c1f91fbec852cd69f5ce75be7f7a7627a8eeca8e20b06b0e99f016
ripemd-160
42e0d8098d36f9729a6b482592a6ac1f860f9581
Diameter
12890313442
Circumference
40496114011.857
Area
1.3050190069895E+20
Volume
1.1214736031908E+30
Surface area
5.220076027958E+20
Circumference
40496114011.857
Perimeter
25780626884
Area
4.1540045158251E+19
Diagonal
9114828046.4583
Surface area
2.4924027094951E+20
Volume
2.6773210124235E+29
Space diagonal
11163338903.516
Perimeter
19335470163
Area
1.7987367190699E+19
Altitude
5581669451.758
Surface area
1.7987367190699E+19
Volume
3.1552530721631E+28
Height
3038276015.4861