81589898 is an even 8-digits composite number following 81589897
and preceding 81589899 . In scientific notation, it is written as 8.1589898 × 10^7.
The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors.
There are 37656864 positive integers (up to 81589898) that are relatively prime to 81589898.
81589898 has 8 divisors, whose sum is 131799108
The reverse of 81589898 is 89898518
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 56
Digital Root 2
Name
eighty-one million five hundred eighty-nine thousand eight hundred ninety-eight
Scientific notation
8.1589898 × 10^7
Engineering notation
8.1589898 × 10^6
Prime Factorization
2 × 13 × 3138073
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81589898
Product of the distinct prime numbers
The prime factorization of 81589898 is 2 × 13 × 3138073.
Since it has a total of 3 prime factors.
9 , 3 , 62 , 32 , 931 , 265 , 1943 , 9234 , 13394 , 56091 , 728842 , 259993 , 4774573 , 3686609 , 54433344 , 41797513 , 262434147 , 653239980 , 1674605030 , 1673641894
n×2
163179796
n×3
244769694
n×4
326359592
n×5
407949490
n÷2
40794949
n÷3
27196632.666667
n÷3
20397474.5
n÷5
16317979.6
n2
6656911455650404
n3
5.4313672666155E+23
n4
4.431447012837E+31
n5
3.6156130976977E+39
2 √n
9032.7126601038
3 √n
433.7226774253
4 √n
95.040584279053
5 √n
38.223220699583
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
-81589897
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 81589898 can be divided by 8 positive divisors.
The sum of these divisors (counting 81589898) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111001111011010001010
3
Ternary
12200112012022002
4
Quaternary
10313033122022
5
Quinary
131341334043
6
Senary
12032431002
8
Octal
467173212
10
Decimal
81589898
12
Duodecimal
233a8462
16
Hexadecimal
4dcf68a
20
Vigesimal
159ieei
36
Base36
1ckr62
md5
b450e12e6b9c0d74ad5423e5fcb51234
sha1
13444f169bde5fdc79a8f3ac5f4971e8396bf0f4
sha256
0a037df5ffb956891fdb8bcfcc8c58d99da4296a04d27c1d69d649c49627ab87
sha512
211b2d16da95847e00366c515d4a3a936e96eef9ac330e494fc9c16af7032e5213a81e5af11501da1fc5e4ce0cc910e4563d8f738c3a2f2fffb9f18a3e62f85f
ripemd-160
81c1aa5c313a680558ccdeb77f332cfdad8828d5
Diameter
163179796
Circumference
512644448.32788
Area
2.0913304124669E+16
Volume
2.2750858004996E+24
Surface area
8.3653216498676E+16
Circumference
512644448.32788
Perimeter
326359592
Area
6656911455650404
Diagonal
115385540.30424
Surface area
39941468733902424
Volume
5.4313672666155E+23
Space diagonal
141317848.72036
Perimeter
244769694
Area
2.8825272156684E+15
Altitude
70658924.360181
Surface area
2.8825272156684E+15
Volume
6.4009277088974E+22
Height
38461846.768079