7427981 is an odd 7-digits composite number following 7427980
and preceding 7427982 . In scientific notation, it is written as 7.427981 × 10^6.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 6752700 positive integers (up to 7427981) that are relatively prime to 7427981.
7427981 has 4 divisors, whose sum is 8103264
The reverse of 7427981 is 1897247
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
seven million four hundred twenty-seven thousand nine hundred eighty-one
Scientific notation
7.427981 × 10^6
Engineering notation
7.427981 × 10^6
Prime Factorization
11 × 675271
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
7427981
Product of the distinct prime numbers
The prime factorization of 7427981 is 11 × 675271.
Since it has a total of 2 prime factors.
3 , 6 , 91 , 26 , 101 , 239 , 8651 , 6262 , 620 , 27971 , 963711 , 58688 , 1207634 , 7966262 , 62473312 , 78153463 , 958989613 , 797276433 , 7544881171 , 1412532291
n×2
14855962
n×3
22283943
n×4
29711924
n×5
37139905
n÷2
3713990.5
n÷3
2475993.6666667
n÷3
1856995.25
n÷5
1485596.2
n2
55174901736361
n3
4.0983812177456E+20
n4
3.0442697816171E+27
n5
2.2612778096726E+34
2 √n
2725.4322592939
3 √n
195.11482170355
4 √n
52.205672673512
5 √n
23.668686474214
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
-7427980
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 7427981 can be divided by 4 positive divisors.
The sum of these divisors (counting 7427981) is 1, the average is 0.25.
Base
System
Value
2
Binary
11100010101011110001101
3
Ternary
111222101021102
4
Quaternary
130111132031
5
Quinary
3400143411
6
Senary
423112445
8
Octal
34253615
10
Decimal
7427981
12
Duodecimal
25a2725
16
Hexadecimal
71578d
20
Vigesimal
2689j1
36
Base36
4f7gt
md5
e522a338f587734286449711ef73026e
sha1
20c39f26eea746125aced933b297c4f966a1f93f
sha256
edab4718f67e2aec0a1c5dc5bc2174f24206820cc5825166ddaf82dfe3a4998f
sha512
fb900001d07eb83499e8f61d34809eabf67463b0f75f31bd8051a1dc19fb8d1ea49d39f6f17d319474d7225e7181ec0b7f81cf7e4560d3161449a369e471b308
ripemd-160
cda9665f4f73a7b1e87b348141849cafee6965f2
Diameter
14855962
Circumference
46671381.081209
Area
1.7333706595749E+14
Volume
1.7167259100373E+21
Surface area
6.9334826382996E+14
Circumference
46671381.081209
Perimeter
29711924
Area
55174901736361
Diagonal
10504751.47125
Surface area
331049410418166
Volume
4.0983812177456E+20
Space diagonal
12865640.489656
Perimeter
22283943
Area
23891433277499
Altitude
6432820.2448281
Surface area
23891433277499
Volume
4.8299885849258E+19
Height
3501583.8237499