81497608 is an even 8-digits composite number following 81497607
and preceding 81497609 . In scientific notation, it is written as 8.1497608 × 10^7.
The sum of its digits is 43. It has a total of 5 prime factors and 16 positive divisors.
There are 40685568 positive integers (up to 81497608) that are relatively prime to 81497608.
81497608 has 16 divisors, whose sum is 153045180
The reverse of 81497608 is 80679418
Previous prime number is 673
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million four hundred ninety-seven thousand six hundred eight
Scientific notation
8.1497608 × 10^7
Engineering notation
8.1497608 × 10^6
Prime Factorization
2 × 2 × 2 × 673 × 15137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20374402
Product of the distinct prime numbers
The prime factorization of 81497608 is 2 × 2 × 2 × 673 × 15137.
Since it has a total of 5 prime factors.
4 , 3 , 26 , 20 , 486 , 609 , 8533 , 4768 , 85211 , 14071 , 216114 , 897108 , 9263178 , 9694068 , 60421731 , 5315978 , 96644924 , 3281234 , 931939381 , 7992438991
n×2
162995216
n×3
244492824
n×4
325990432
n×5
407488040
n÷2
40748804
n÷3
27165869.333333
n÷3
20374402
n÷5
16299521.6
n2
6641860109721664
n3
5.4129571161293E+23
n4
4.4114305717112E+31
n5
3.5952103945253E+39
2 √n
9027.6025610347
3 √n
433.55908132267
4 √n
95.01369670229
5 √n
38.21456958392
1 , 2 , 4 , 8 , 673 , 1346 , 2692 , 5384 , 15137 , 30274 , 60548 , 121096 , 10187201 , 20374402 , 40748804 , 81497608
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
-81497607
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 81497608 can be divided by 16 positive divisors.
The sum of these divisors (counting 81497608) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111000111000001000
3
Ternary
12200100111200221
4
Quaternary
10312320320020
5
Quinary
131330410413
6
Senary
12030435424
8
Octal
466707010
10
Decimal
81497608
12
Duodecimal
23362b74
16
Hexadecimal
4db8e08
20
Vigesimal
1597408
36
Base36
1ciryg
md5
7b60d7f825a0aeb6ef87ee4792669d6e
sha1
ae65f3b6136e6ca667b8dfa486586aa5778c7377
sha256
8f2867ad5b9ed9f6248b0c3ea9777639df3dc5861e5e8944e0b706f896456854
sha512
290db55df99771299e4eceb36b2899217f25423ddc056b60d6def5001eb38c7544c4d3ec374c7bfc457119507861f20aa0a9a921526c02c24b35f47fc5b91497
ripemd-160
d23fe2ff33a76a3689e2dea01d18317e6740c8e5
Diameter
162995216
Circumference
512064573.15588
Area
2.0866018926873E+16
Volume
2.2673741746971E+24
Surface area
8.3464075707491E+16
Circumference
512064573.15588
Perimeter
325990432
Area
6641860109721664
Diagonal
115255022.53457
Surface area
39851160658329984
Volume
5.4129571161293E+23
Space diagonal
141157997.75133
Perimeter
244492824
Area
2.8760097917007E+15
Altitude
70578998.875666
Surface area
2.8760097917007E+15
Volume
6.3792311384784E+22
Height
38418340.844855