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 4 prime factors and 12 positive divisors.
There are 57895992 positive integers (up to 68572021) that are relatively prime to 68572021.
68572021 has 12 divisors, whose sum is 80961888
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
7 × 7 × 67 × 20887
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9796003
Product of the distinct prime numbers
The prime factorization of 68572021 is 7 × 7 × 67 × 20887.
Since it has a total of 4 prime factors.
1 , 4 , 97 , 93 , 13 , 647 , 1339 , 8006 , 77584 , 35162 , 515137 , 317862 , 749060 , 8811758 , 93362769 , 79324794 , 658883509 , 756016189 , 6671249424 , 8536061920
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
1 , 7 , 49 , 67 , 469 , 3283 , 20887 , 146209 , 1023463 , 1399429 , 9796003 , 68572021
12 divisors
τ
Total Divisors
12
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
0.083333333333333
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
12
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 12 positive divisors.
The sum of these divisors (counting 68572021) is 1, the average is 0.083333333333333.
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