7923981 is an odd 7-digits composite number following 7923980
and preceding 7923982 . In scientific notation, it is written as 7.923981 × 10^6.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 4847040 positive integers (up to 7923981) that are relatively prime to 7923981.
7923981 has 8 divisors, whose sum is 10619200
The reverse of 7923981 is 1893297
Previous prime number is 13273
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 39
Digital Root 3
Name
seven million nine hundred twenty-three thousand nine hundred eighty-one
Scientific notation
7.923981 × 10^6
Engineering notation
7.923981 × 10^6
Prime Factorization
3 × 13273 × 199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7923981
Product of the distinct prime numbers
The prime factorization of 7923981 is 3 × 13273 × 199.
Since it has a total of 3 prime factors.
10 , 9 , 17 , 91 , 547 , 802 , 2848 , 545 , 90788 , 46419 , 975057 , 679353 , 876694 , 6643259 , 35996984 , 7649346 , 347617111 , 39337572 , 6750318029 , 2458867982
n×2
15847962
n×3
23771943
n×4
31695924
n×5
39619905
n÷2
3961990.5
n÷3
2641327
n÷3
1980995.25
n÷5
1584796.2
n2
62789474888361
n3
4.9754260601535E+20
n4
3.9425181567561E+27
n5
3.124043896629E+34
2 √n
2814.9566604124
3 √n
199.36449111448
4 √n
53.05616514989
5 √n
23.976660015363
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
-7923980
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 7923981 can be divided by 8 positive divisors.
The sum of these divisors (counting 7923981) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110001110100100001101
3
Ternary
112220120122210
4
Quaternary
132032210031
5
Quinary
4012031411
6
Senary
441501033
8
Octal
36164415
10
Decimal
7923981
12
Duodecimal
27a1779
16
Hexadecimal
78e90d
20
Vigesimal
29a9j1
36
Base36
4pu6l
md5
a8f22a1523f54d5f34394e62153a6a8e
sha1
e97239bd2abaac56e1cd871e4a7cdeca79c8b7d5
sha256
a824e32a972788b468af7d7a91ba7cb0a0d8fa113ad152a929d57a39b158a65f
sha512
74bb0b5791728044c0ff0996798b30ad1040f9c4d715ca6a18ec25450f1eed0f8a1dd92014b7970ef63625aa15fb8ca840ed6efbde709b8b0694a47e0c4993aa
ripemd-160
4155ac1a4eb590ff794c13c49622303f5782f0b4
Diameter
15847962
Circumference
49787840.99357
Area
1.9725895303204E+14
Volume
2.084101594541E+21
Surface area
7.8903581212814E+14
Circumference
49787840.99357
Perimeter
31695924
Area
62789474888361
Diagonal
11206201.398187
Surface area
376736849330166
Volume
4.9754260601535E+20
Space diagonal
13724737.69021
Perimeter
23771943
Area
27188640171803
Altitude
6862368.8451052
Surface area
27188640171803
Volume
5.8635958440447E+19
Height
3735400.4660622