68572021 is an odd 8-digits composite number following 68572020
and preceding 68572022 . In scientific notation, it is written as 6.8572021 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 57895992 positive integers (up to 68572021) that are relatively prime to 68572021.
68572021 has 8 divisors, whose sum is 71019200
The reverse of 68572021 is 12027586
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-eight million five hundred seventy-two thousand twenty-one
Scientific notation
6.8572021 × 10^7
Engineering notation
6.8572021 × 10^6
Prime Factorization
49 × 67 × 20887
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68572021
Product of the distinct prime numbers
The prime factorization of 68572021 is 49 × 67 × 20887.
Since it has a total of 3 prime factors.
8 , 7 , 27 , 70 , 435 , 530 , 7248 , 7686 , 57295 , 96721 , 293227 , 842122 , 4760347 , 789156 , 40728801 , 41291703 , 4078274 , 432373230 , 2247030821 , 899068492
n×2
137144042
n×3
205716063
n×4
274288084
n×5
342860105
n÷2
34286010.5
n÷3
22857340.333333
n÷3
17143005.25
n÷5
13714404.2
n2
4702122064024441
n3
3.2243401291885E+23
n4
2.2109951904985E+31
n5
1.5161240863377E+39
2 √n
8280.8224833044
3 √n
409.30682197754
4 √n
90.999024628314
5 √n
36.917254023415
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
-68572020
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 68572021 can be divided by 8 positive divisors.
The sum of these divisors (counting 68572021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000101100101001101110101
3
Ternary
11210000211010111
4
Quaternary
10011211031311
5
Quinary
120023301041
6
Senary
10445423021
8
Octal
405451565
10
Decimal
68572021
12
Duodecimal
1ab6aa71
16
Hexadecimal
4165375
20
Vigesimal
118ba11
36
Base36
14tqid
md5
609580bd12d182264612cd288fa9ccd5
sha1
f03ba39aba7810493b893ee1e9785f7856367f93
sha256
71d635a6ce0b208455d01bfcab644647dc6dd08f918a3ed5ef65109c087cf6c5
sha512
556d326a910f9b69a15156066a2630a3677bc129973db81ae457d55bf1460979e85c2eb16eb9f631d4e06ee76f503fcf4c893b1f503c9cdf31ec139b11605068
ripemd-160
d52c22383c1f0c2d1ab3ccf14e7b27281905157f
Diameter
137144042
Circumference
430850714.83081
Area
1.4772152132622E+16
Volume
1.3506084350044E+24
Surface area
5.9088608530487E+16
Circumference
430850714.83081
Perimeter
274288084
Area
4702122064024441
Diagonal
96975482.097533
Surface area
28212732384146646
Volume
3.2243401291885E+23
Space diagonal
118770224.34968
Perimeter
205716063
Area
2.0360785795702E+15
Altitude
59385112.17484
Surface area
2.0360785795702E+15
Volume
3.7999212836685E+22
Height
32325160.699178