3945981 is an odd 7-digits composite number following 3945980
and preceding 3945982 . In scientific notation, it is written as 3.945981 × 10^6.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 2358720 positive integers (up to 3945981) that are relatively prime to 3945981.
3945981 has 16 divisors, whose sum is 5445440
The reverse of 3945981 is 1895493
Previous prime number is 169
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 39
Digital Root 3
Name
three million nine hundred forty-five thousand nine hundred eighty-one
Scientific notation
3.945981 × 10^6
Engineering notation
3.945981 × 10^6
Prime Factorization
3 × 43 × 169 × 181
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3945981
Product of the distinct prime numbers
The prime factorization of 3945981 is 3 × 43 × 169 × 181.
Since it has a total of 4 prime factors.
1 , 1 , 84 , 11 , 225 , 402 , 9591 , 9787 , 85297 , 22194 , 785479 , 211690 , 5367823 , 9042668 , 20410611 , 7718018 , 348428655 , 123416855 , 6337343420 , 2418330555
n×2
7891962
n×3
11837943
n×4
15783924
n×5
19729905
n÷2
1972990.5
n÷3
1315327
n÷3
986495.25
n÷5
789196.2
n2
15570766052361
n3
6.1441946998062E+19
n4
2.4244875545736E+26
n5
9.5669818250838E+32
2 √n
1986.4493449368
3 √n
158.02228228179
4 √n
44.569601130556
5 √n
20.855999029756
1 , 3 , 43 , 129 , 169 , 181 , 507 , 543 , 7267 , 7783 , 21801 , 23349 , 30589 , 91767 , 1315327 , 3945981
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-3945980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 3945981 can be divided by 16 positive divisors.
The sum of these divisors (counting 3945981) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000011010111111101
3
Ternary
21102110212110
4
Quaternary
33003113331
5
Quinary
2002232411
6
Senary
220324233
8
Octal
17032775
10
Decimal
3945981
12
Duodecimal
13a3679
16
Hexadecimal
3c35fd
20
Vigesimal
14d4j1
36
Base36
2ckql
md5
2b0128e83e46cc31ee8400be118fda9c
sha1
f36002e01d249228524f9cf07070826bd893374f
sha256
8fd202224065434ba8fc2bf53d885d3ca4d97ea5a3a56105b33f316445a34bf0
sha512
971a636cfe2a3a4bbf746e0b8fb4116f97cfecdd63df354136c2da761e032283dfb246a6f652e6ca7f2eb6ea40a60377aa5a4801432a061508d2f96e0c69a82d
ripemd-160
023b871034f78df25b06384076ed762d1b5c5108
Diameter
7891962
Circumference
24793329.84161
Area
48917004240863
Volume
2.5736742574848E+20
Surface area
1.9566801696345E+14
Circumference
24793329.84161
Perimeter
15783924
Area
15570766052361
Diagonal
5580459.8470665
Surface area
93424596314166
Volume
6.1441946998062E+19
Space diagonal
6834639.5777014
Perimeter
11837943
Area
6742339478864.5
Altitude
3417319.7888507
Surface area
6742339478864.5
Volume
7.2410028952723E+18
Height
1860153.2823555