81738366 is an even 8-digits composite number following 81738365
and preceding 81738367 . In scientific notation, it is written as 8.1738366 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 26061464 positive integers (up to 81738366) that are relatively prime to 81738366.
81738366 has 16 divisors, whose sum is 170584704
The reverse of 81738366 is 66383718
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million seven hundred thirty-eight thousand three hundred sixty-six
Scientific notation
8.1738366 × 10^7
Engineering notation
8.1738366 × 10^6
Prime Factorization
2 × 3 × 23 × 592307
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81738366
Product of the distinct prime numbers
The prime factorization of 81738366 is 2 × 3 × 23 × 592307.
Since it has a total of 4 prime factors.
3 , 6 , 65 , 81 , 481 , 617 , 4363 , 5289 , 2608 , 740 , 380374 , 502553 , 166292 , 1895136 , 51237332 , 30132728 , 604785170 , 351554643 , 9444286794 , 7101646095
n×2
163476732
n×3
245215098
n×4
326953464
n×5
408691830
n÷2
40869183
n÷3
27246122
n÷3
20434591.5
n÷5
16347673.2
n2
6681160476349956
n3
5.4610714032063E+23
n4
4.4637905310741E+31
n5
3.6486294417627E+39
2 √n
9040.9272754513
3 √n
433.98559771556
4 √n
95.083790813426
5 √n
38.237121437643
1 , 2 , 3 , 6 , 23 , 46 , 69 , 138 , 592307 , 1184614 , 1776921 , 3553842 , 13623061 , 27246122 , 40869183 , 81738366
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
-81738365
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 81738366 can be divided by 16 positive divisors.
The sum of these divisors (counting 81738366) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111110011101001111110
3
Ternary
12200210201221220
4
Quaternary
10313303221332
5
Quinary
131411111431
6
Senary
12035534210
8
Octal
467635176
10
Decimal
81738366
12
Duodecimal
2345a366
16
Hexadecimal
4df3a7e
20
Vigesimal
15ah5i6
36
Base36
1cnxq6
md5
ba4cae111f6ac9dcfbf37079c0462dd6
sha1
84b79210bcdb6678d4ca228f4df62146a0246b57
sha256
bc37ef616b21976b9e430c71df7029682a3fcc875c7de92d19f5f882906f2da5
sha512
851aa579f3e59790132e567d1a6094ec38835f2dabdf104a5def1191dbbb51b1ff9169a0a571ef664165e965f9608c9b73065f65f63bb63319d97c6c4d37ceb7
ripemd-160
39e66d8ab4ef4182bfca3f04282dcc89f507ebbf
Diameter
163476732
Circumference
513577300.28407
Area
2.0989484669956E+16
Volume
2.2875282401389E+24
Surface area
8.3957938679822E+16
Circumference
513577300.28407
Perimeter
326953464
Area
6681160476349956
Diagonal
115595505.76342
Surface area
40086962858099736
Volume
5.4610714032063E+23
Space diagonal
141575002.83966
Perimeter
245215098
Area
2.8930273496398E+15
Altitude
70787501.41983
Surface area
2.8930273496398E+15
Volume
6.4359343695851E+22
Height
38531835.254472