27991285 is an odd 8-digits composite number following 27991284
and preceding 27991286 . In scientific notation, it is written as 2.7991285 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 19139328 positive integers (up to 27991285) that are relatively prime to 27991285.
27991285 has 8 divisors, whose sum is 28873152
The reverse of 27991285 is 58219972
Previous prime number is 1847
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-seven million nine hundred ninety-one thousand two hundred eighty-five
Scientific notation
2.7991285 × 10^7
Engineering notation
2.7991285 × 10^6
Prime Factorization
35 × 1847 × 433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
27991285
Product of the distinct prime numbers
The prime factorization of 27991285 is 35 × 1847 × 433.
Since it has a total of 3 prime factors.
3 , 10 , 73 , 100 , 502 , 959 , 1277 , 2701 , 56969 , 88356 , 880723 , 431883 , 5011191 , 9786453 , 28020822 , 91530754 , 962976584 , 236126288 , 3360062883 , 296687624
n×2
55982570
n×3
83973855
n×4
111965140
n×5
139956425
n÷2
13995642.5
n÷3
9330428.3333333
n÷3
6997821.25
n÷5
5598257
n2
783512035951225
n3
2.1931508699241E+22
n4
6.1389111048043E+29
n5
1.7183601032424E+37
2 √n
5290.6790679458
3 √n
303.62738930781
4 √n
72.73705429797
5 √n
30.860614336234
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
-27991284
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 27991285 can be divided by 8 positive divisors.
The sum of these divisors (counting 27991285) is 1, the average is 0.125.
Base
System
Value
2
Binary
1101010110001110011110101
3
Ternary
1221200002211021
4
Quaternary
1222301303311
5
Quinary
24131210120
6
Senary
2435541141
8
Octal
152616365
10
Decimal
27991285
12
Duodecimal
945a7b1
16
Hexadecimal
1ab1cf5
20
Vigesimal
8eii45
36
Base36
gny7p
md5
95b072a54140700b5f960fb449895dda
sha1
ffbd165a1ed8525a4465b499cc468120de2a6a2a
sha256
babcd38a1c8bdbda6b282a5e664b0f9aa7a4b6b492404ab1deaece977929a398
sha512
96c3baad1e68156524f1f8d0305327291cea31e6f1e639417a083afb2a67507caf92b9a9b9e830bad8eda32cff0859ca810d21d5c413a9f1137513c6d0e0b626
ripemd-160
52a54c0ac8747401bbdd2924b2c180157f94fb9d
Diameter
55982570
Circumference
175874430.64108
Area
2.4614756561436E+15
Volume
9.1866488815568E+22
Surface area
9.8459026245742E+15
Circumference
175874430.64108
Perimeter
111965140
Area
783512035951225
Diagonal
39585654.875251
Surface area
4701072215707350
Volume
2.1931508699241E+22
Space diagonal
48482327.789141
Perimeter
83973855
Area
3.3927066365231E+14
Altitude
24241163.89457
Surface area
3.3927066365231E+14
Volume
2.5846530871475E+21
Height
13195218.29175