81636345 is an odd 8-digits composite number following 81636344
and preceding 81636346 . In scientific notation, it is written as 8.1636345 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 37319328 positive integers (up to 81636345) that are relatively prime to 81636345.
81636345 has 24 divisors, whose sum is 161718336
The reverse of 81636345 is 54363618
Previous prime number is 3
Is Prime? no Number parity odd Number length 8 Sum of Digits 36 Digital Root 9
Name
eighty-one million six hundred thirty-six thousand three hundred forty-five
Scientific notation
8.1636345 × 10^7
Engineering notation
8.1636345 × 10^6
Prime Factorization
7 × 5 × 3 × 3 × 259163
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
27212115 Product of the distinct prime numbers
The prime factorization of 81636345 is 7 × 5 × 3 × 3 × 259163.
Since it has a total of 5 prime factors.
1 , 5 , 27 , 92 , 11 , 673 , 4008 , 102 , 42167 , 78012 , 656313 , 372339 , 2779971 , 4001382 , 79016725 , 59677761 , 782993797 , 803887075 , 1592014432 , 649573455
n×2
163272690
n×3
244909035
n×4
326545380
n×5
408181725
n÷2
40818172.5
n÷3
27212115
n÷3
20409086.25
n÷5
16327269
n2
6664492824959025
n3
5.4406483550838E+23
n4
4.441546461393E+31
n5
3.6259161925581E+39
2 √n9035.283338114
3 √n433.80496414708
4 √n95.054107423688
5 √n38.22757160539
1 , 3 , 5 , 7 , 9 , 15 , 21 , 35 , 45 , 63 , 105 , 315 , 259163 , 777489 , 1295815 , 1814141 , 2332467 , 3887445 , 5442423 , 9070705 , 11662335 , 16327269 , 27212115 , 81636345
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81636344 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81636345 can be divided by 24 positive divisors.
The sum of these divisors (counting 81636345) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110111011010101111111001
3
Ternary
12200121120000100
4
Quaternary
10313122233321
5
Quinary
131344330340
6
Senary
12033430013
8
Octal
467325771
10
Decimal
81636345
12
Duodecimal
2340b309
16
Hexadecimal
4ddabf9
20
Vigesimal
15a4ah5
36
Base36
1clr09
md5
fc0b7c59c22dd2a7956ef323f6c83fe7
sha1
0ab7361e296fd238761b4a20f6990e628140e0e3
sha256
1325e8cde7aa907788a7ffb5c70b8163ae8b399611b2f688c1c22912a5ea53dc
sha512
435b322aa283b7e4bd1dbc6ecd74888b48c5c1c953ed9c5dc5d9e8f7b7422dbff30e1b5fc93cf7ce9a1199bb348b2670833b37ee20ccf1b29899789476f43165
ripemd-160
4693d6ae2ce52d9267b1fb4a09ac704c4213b2b8
Diameter
163272690
Circumference
512936283.43584
Area
2.0937121698793E+16
Volume
2.2789734537462E+24
Surface area
8.3748486795173E+16
Circumference
512936283.43584
Perimeter
326545380
Area
6664492824959025
Diagonal
115451226.28157
Surface area
39986956949754150
Volume
5.4406483550838E+23
Space diagonal
141398297.28422
Perimeter
244909035
Area
2.8858100448768E+15
Altitude
70699148.642111
Surface area
2.8858100448768E+15
Volume
6.411865576552E+22
Height
38483742.093856