64872021 is an odd 8-digits composite number following 64872020
and preceding 64872022 . In scientific notation, it is written as 6.4872021 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 43129440 positive integers (up to 64872021) that are relatively prime to 64872021.
64872021 has 8 divisors, whose sum is 86733184
The reverse of 64872021 is 12027846
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
sixty-four million eight hundred seventy-two thousand twenty-one
Scientific notation
6.4872021 × 10^7
Engineering notation
6.4872021 × 10^6
Prime Factorization
3 × 367 × 58921
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64872021
Product of the distinct prime numbers
The prime factorization of 64872021 is 3 × 367 × 58921.
Since it has a total of 3 prime factors.
8 , 5 , 99 , 10 , 354 , 448 , 9087 , 345 , 36079 , 388 , 533390 , 531635 , 6192059 , 1666741 , 3351351 , 12585833 , 520873192 , 581135077 , 1221137305 , 3453662516
n×2
129744042
n×3
194616063
n×4
259488084
n×5
324360105
n÷2
32436010.5
n÷3
21624007
n÷3
16218005.25
n÷5
12974404.2
n2
4208379108624441
n3
2.7300605791065E+23
n4
1.7710454721907E+31
n5
1.1489129906391E+39
2 √n
8054.3169170328
3 √n
401.80852122078
4 √n
89.745846238323
5 √n
36.509970799191
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64872020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64872021 can be divided by 8 positive divisors.
The sum of these divisors (counting 64872021) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110111011101111001010101
3
Ternary
11112001211200110
4
Quaternary
3313131321111
5
Quinary
113101401041
6
Senary
10234233233
8
Octal
367357125
10
Decimal
64872021
12
Duodecimal
19885819
16
Hexadecimal
3ddde55
20
Vigesimal
1059011
36
Base36
12mfkl
md5
254a63bf2ed6a1e337ef9cfb83705861
sha1
55ce3c4b07cfc5aff19e78442b2ed1283aa236d0
sha256
d27cac25bea23a71181ce860ef4c3411128f749fa860b0211e453ea9be7c45df
sha512
0da76b5853b6f4e4762d32812ce4b952d0325d51eacc779bdeb5b9161551ff32514aec08f71397dc62c6e069103fe6f6a98467109a330799af7c182812af70d1
ripemd-160
a9de47e9fc9ebd558a6cc35397fd88a6314a9ba4
Diameter
129744042
Circumference
407602929.19425
Area
1.3221012891175E+16
Volume
1.1435651012235E+24
Surface area
5.2884051564701E+16
Circumference
407602929.19425
Perimeter
259488084
Area
4208379108624441
Diagonal
91742891.916752
Surface area
25250274651746646
Volume
2.7300605791065E+23
Space diagonal
112361636.36168
Perimeter
194616063
Area
1.8222816084122E+15
Altitude
56180818.180838
Surface area
1.8222816084122E+15
Volume
3.2174072475604E+22
Height
30580963.972251