81678077 is an odd 8-digits composite number following 81678076
and preceding 81678078 . In scientific notation, it is written as 8.1678077 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 75395136 positive integers (up to 81678077) that are relatively prime to 81678077.
81678077 has 4 divisors, whose sum is 87961020
The reverse of 81678077 is 77087618
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-one million six hundred seventy-eight thousand seventy-seven
Scientific notation
8.1678077 × 10^7
Engineering notation
8.1678077 × 10^6
Prime Factorization
13 × 6282929
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81678077
Product of the distinct prime numbers
The prime factorization of 81678077 is 13 × 6282929.
Since it has a total of 2 prime factors.
3 , 6 , 36 , 41 , 321 , 138 , 8364 , 1139 , 69747 , 18157 , 152854 , 348751 , 7646726 , 4729202 , 51016200 , 122719 , 153843778 , 361432182 , 6086657751 , 1856987425
n×2
163356154
n×3
245034231
n×4
326712308
n×5
408390385
n÷2
40839038.5
n÷3
27226025.666667
n÷3
20419519.25
n÷5
16335615.4
n2
6671308262417929
n3
5.4489962994851E+23
n4
4.4506353932206E+31
n5
3.635193403464E+39
2 √n
9037.5924338288
3 √n
433.87887103594
4 √n
95.066252865193
5 √n
38.231479146602
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81678076
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81678077 can be divided by 4 positive divisors.
The sum of these divisors (counting 81678077) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111100100111011111101
3
Ternary
12200200200020222
4
Quaternary
10313210323331
5
Quinary
131402144302
6
Senary
12034351125
8
Octal
467447375
10
Decimal
81678077
12
Duodecimal
2342b4a5
16
Hexadecimal
4de4efd
20
Vigesimal
15a9f3h
36
Base36
1cmn7h
md5
49f857fd42285535ed5a439e5f29e9bd
sha1
bbc1235b7d24d0f1e187535e05b00304235ce233
sha256
0c3dc1a49365e0c2a0c8f711003347177803e0c901b3518dbf296997c08f0962
sha512
b0e411e8987fc27d723d621b862b11e8257a6e3ac2310604de19ad4de5cb9c2b0cabaf2561acb681bc449a987069520587620b578bbb0e975e508a403c0d64d7
ripemd-160
4d1c79316a34b9199f99aa1cf1b0c6f9b945b3fb
Diameter
163356154
Circumference
513198493.32508
Area
2.0958533027045E+16
Volume
2.28247023252E+24
Surface area
8.383413210818E+16
Circumference
513198493.32508
Perimeter
326712308
Area
6671308262417929
Diagonal
115510244.24195
Surface area
40027849574507574
Volume
5.4489962994851E+23
Space diagonal
141470579.22852
Perimeter
245034231
Area
2.8887612158655E+15
Altitude
70735289.614261
Surface area
2.8887612158655E+15
Volume
6.4217037233772E+22
Height
38503414.747318