27981331 is an odd 8-digits composite number following 27981330
and preceding 27981332 . In scientific notation, it is written as 2.7981331 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 23958528 positive integers (up to 27981331) that are relatively prime to 27981331.
27981331 has 8 divisors, whose sum is 32012640
The reverse of 27981331 is 13318972
Previous prime number is 1409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-seven million nine hundred eighty-one thousand three hundred thirty-one
Scientific notation
2.7981331 × 10^7
Engineering notation
2.7981331 × 10^6
Prime Factorization
7 × 1409 × 2837
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
27981331
Product of the distinct prime numbers
The prime factorization of 27981331 is 7 × 1409 × 2837.
Since it has a total of 3 prime factors.
7 , 8 , 18 , 91 , 30 , 529 , 3285 , 7565 , 94727 , 97582 , 591317 , 986637 , 2995149 , 3038197 , 14030455 , 66813714 , 179573358 , 107126016 , 4611881378 , 5493681444
n×2
55962662
n×3
83943993
n×4
111925324
n×5
139906655
n÷2
13990665.5
n÷3
9327110.3333333
n÷3
6995332.75
n÷5
5596266.2
n2
782954884531561
n3
2.1908119782144E+22
n4
6.1301835121183E+29
n5
1.7153069394332E+37
2 √n
5289.7382732986
3 √n
303.59139399286
4 √n
72.73058691705
5 √n
30.858419151126
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
-27981330
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 27981331 can be divided by 8 positive divisors.
The sum of these divisors (counting 27981331) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010101111011000010011
3
Ternary
1221122121011121
4
Quaternary
1222233120103
5
Quinary
24130400311
6
Senary
2435423111
8
Octal
152573023
10
Decimal
27981331
12
Duodecimal
9454a97
16
Hexadecimal
1aaf613
20
Vigesimal
8ehd6b
36
Base36
gnqj7
md5
c6078f300a609fde5181c098083624f6
sha1
67558151f18ca2344c903973b9b63daa64afe0bf
sha256
c6b67c3512da0a138f6da46686225ee1da14e0270b40028a0450934913597d2c
sha512
29b36e11f34a029e33ec642fce09121aecd21315c527feddd844b6b66ad1abcb1a9d9cea096acc83db4357dd8f9926f060d083aedf13c0815b21e3195374eae6
ripemd-160
6b96ce25c8791ffab05e340f6a926b9e981b8e1a
Diameter
55962662
Circumference
175811887.81453
Area
2.4597253133366E+15
Volume
9.1768517548733E+22
Surface area
9.8389012533464E+15
Circumference
175811887.81453
Perimeter
111925324
Area
782954884531561
Diagonal
39571577.793451
Surface area
4697729307189366
Volume
2.1908119782144E+22
Space diagonal
48465086.955402
Perimeter
83943993
Area
3.3902941001072E+14
Altitude
24232543.477701
Surface area
3.3902941001072E+14
Volume
2.5818966768336E+21
Height
13190525.93115