81336691 is an odd 8-digits prime number following 81336690
and preceding 81336692 . In scientific notation, it is written as 8.1336691 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 81336690 positive integers (up to 81336691) that are relatively prime to 81336691.
81336691 has 2 divisors, whose sum is 81336692
The reverse of 81336691 is 19663318
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 37 Digital Root 1
Name
eighty-one million three hundred thirty-six thousand six hundred ninety-one
Scientific notation
8.1336691 × 10^7
Engineering notation
8.1336691 × 10^6
Prime Factorization
81336691
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81336691 Product of the distinct prime numbers
The prime factorization of 81336691 is 81336691.
Since it has a total of 1 prime factors.
8 , 10 , 92 , 40 , 461 , 349 , 6958 , 5273 , 53259 , 81483 , 334483 , 322207 , 8272828 , 607794 , 94048004 , 79151458 , 379674503 , 994051141 , 7848177545 , 8299229408
n×2
162673382
n×3
244010073
n×4
325346764
n×5
406683455
n÷2
40668345.5
n÷3
27112230.333333
n÷3
20334172.75
n÷5
16267338.2
n2
6615657302829481
n3
5.3809567380213E+23
n4
4.3766921548481E+31
n5
3.55985657401E+39
2 √n9018.6856581211
3 √n433.27353921837
4 √n94.966760806722
5 √n38.199466719968
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81336692 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40668346 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9018.6857135616 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999754109 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81336691 can be divided by 2 positive divisors.
The sum of these divisors (counting 81336691) is 81336692, the average is 40668346.
Base
System
Value
2
Binary
100110110010001100101110011
3
Ternary
12200001022222001
4
Quaternary
10312101211303
5
Quinary
131310233231
6
Senary
12023154431
8
Octal
466214563
10
Decimal
81336691
12
Duodecimal
232a5a17
16
Hexadecimal
4d91973
20
Vigesimal
15871eb
36
Base36
1cfbsj
md5
b53bf40a77582a816ec73f5dc0d377a6
sha1
aa87675dcfaaef40d4dfe8e57c2de54fb2d72a52
sha256
7eb0313b4200c73cdcf33b71c258e2e76a48514ae7c1fa01a056fac136ec6df2
sha512
18cdddaffa5e2f1af7f1b315d4e2f3f2e4a17a2fa3e517ec71c1d224528b2ce37fe919a49aa0849206f0c20b9adc164fc6ab9fe4a71e2560822840531409001c
ripemd-160
7192d1a8b4ddccbeeb425fc07559cfd76e6fc40b
Diameter
162673382
Circumference
511053501.82581
Area
2.0783700381237E+16
Volume
2.2539698876603E+24
Surface area
8.3134801524947E+16
Circumference
511053501.82581
Perimeter
325346764
Area
6615657302829481
Diagonal
115027451.53075
Surface area
39693943816976886
Volume
5.3809567380213E+23
Space diagonal
140879281.33153
Perimeter
244010073
Area
2.8646636434912E+15
Altitude
70439640.665765
Surface area
2.8646636434912E+15
Volume
6.3415183312106E+22
Height
38342483.843583