81507675 is an odd 8-digits composite number following 81507674
and preceding 81507676 . In scientific notation, it is written as 8.1507675 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 43470720 positive integers (up to 81507675) that are relatively prime to 81507675.
81507675 has 8 divisors, whose sum is 113024080
The reverse of 81507675 is 57670518
Previous prime number is 25
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million five hundred seven thousand six hundred seventy-five
Scientific notation
8.1507675 × 10^7
Engineering notation
8.1507675 × 10^6
Prime Factorization
3 × 25 × 1086769
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81507675
Product of the distinct prime numbers
The prime factorization of 81507675 is 3 × 25 × 1086769.
Since it has a total of 3 prime factors.
7 , 7 , 93 , 49 , 11 , 756 , 1641 , 9869 , 91727 , 88080 , 958652 , 816054 , 8313396 , 6815515 , 32120949 , 70876817 , 489424513 , 429809499 , 6690905400 , 6874457363
n×2
163015350
n×3
244523025
n×4
326030700
n×5
407538375
n÷2
40753837.5
n÷3
27169225
n÷3
20376918.75
n÷5
16301535
n2
6643501083905625
n3
5.4149632720913E+23
n4
4.4136106651855E+31
n5
3.5974314367448E+39
2 √n
9028.160111562
3 √n
433.57693239698
4 √n
95.016630710429
5 √n
38.215513628965
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
-81507674
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 81507675 can be divided by 8 positive divisors.
The sum of these divisors (counting 81507675) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110111011010101011011
3
Ternary
12200101000111210
4
Quaternary
10312323111123
5
Quinary
131331221200
6
Senary
12030554203
8
Octal
466732533
10
Decimal
81507675
12
Duodecimal
23368963
16
Hexadecimal
4dbb55b
20
Vigesimal
159893f
36
Base36
1cizq3
md5
b311a2ff175b84a65e9e93ff5ded0ec2
sha1
660e07c2b53b62884c86d1d4810e635373244f2d
sha256
3917b54bb98f54311895b455b3909feb61be49aab3cd803b5147ad45e8b22fe2
sha512
cc4569027be6fc972ec5948e5e248309eb7c0ace5d547d6c010267706a5d4b52f16795c0ba19f09a34ba4cb48ef6f48a01f6abcdb3ad973647c01a7a7f62bd4d
ripemd-160
70365fbb45cfc8e5488b4130ee349f0a503559cd
Diameter
163015350
Circumference
512127825.98237
Area
2.0871174199314E+16
Volume
2.2682145113414E+24
Surface area
8.3484696797255E+16
Circumference
512127825.98237
Perimeter
326030700
Area
6643501083905625
Diagonal
115269259.4225
Surface area
39861006503433750
Volume
5.4149632720913E+23
Space diagonal
141175434.30681
Perimeter
244523025
Area
2.8767203543659E+15
Altitude
70587717.153406
Surface area
2.8767203543659E+15
Volume
6.3815954159531E+22
Height
38423086.474166