8720121 is an odd 7-digits composite number following 8720120
and preceding 8720122 . In scientific notation, it is written as 8.720121 × 10^6.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 5813412 positive integers (up to 8720121) that are relatively prime to 8720121.
8720121 has 4 divisors, whose sum is 11626832
The reverse of 8720121 is 1210278
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 21
Digital Root 3
Name
eight million seven hundred twenty thousand one hundred twenty-one
Scientific notation
8.720121 × 10^6
Engineering notation
8.720121 × 10^6
Prime Factorization
3 × 2906707
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
8720121
Product of the distinct prime numbers
The prime factorization of 8720121 is 3 × 2906707.
Since it has a total of 2 prime factors.
2 , 6 , 94 , 82 , 54 , 168 , 6428 , 5065 , 38366 , 12577 , 839271 , 246615 , 7848845 , 9951787 , 43888139 , 51796227 , 971780004 , 890168438 , 9051517253 , 3917911537
n×2
17440242
n×3
26160363
n×4
34880484
n×5
43600605
n÷2
4360060.5
n÷3
2906707
n÷3
2180030.25
n÷5
1744024.2
n2
76040510254641
n3
6.6308245032221E+20
n4
5.7821591997862E+27
n5
5.0421127863399E+34
2 √n
2952.9850998608
3 √n
205.82944534536
4 √n
54.341375579395
5 √n
24.440185746752
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
-8720120
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 8720121 can be divided by 4 positive divisors.
The sum of these divisors (counting 8720121) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001010000111011111001
3
Ternary
121102000202110
4
Quaternary
201100323321
5
Quinary
4213020441
6
Senary
510522533
8
Octal
41207371
10
Decimal
8720121
12
Duodecimal
2b06449
16
Hexadecimal
850ef9
20
Vigesimal
2ea061
36
Base36
56whl
md5
68f596b00f49ed0e31e29c57df870f08
sha1
03bdd4a0565b71c4d49ba635a8ed330bef4dc58a
sha256
de45ecfcbf699e680ce5cfb7446e0d2c328f8d057e92eeb9f8c9b94b81bec72b
sha512
54761e0c03e7942f3d9c49c7a15c67996611bcf3a5e9872c970e7cd198b62671b301fa3dfbd90044874977f14ac3b6c637b2a8e314f638f2f8c7592989d5b4c7
ripemd-160
8c0c5b710e7700d76802bce1bd46ebc85a350579
Diameter
17440242
Circumference
54790136.144028
Area
2.388883083912E+14
Volume
2.7775132728754E+21
Surface area
9.555532335648E+14
Circumference
54790136.144028
Perimeter
34880484
Area
76040510254641
Diagonal
12332113.383734
Surface area
456243061527846
Volume
6.6308245032221E+20
Space diagonal
15103692.620148
Perimeter
26160363
Area
32926506798625
Altitude
7551846.3100742
Surface area
32926506798625
Volume
7.8145016184771E+19
Height
4110704.4612448