81354927 is an odd 8-digits composite number following 81354926
and preceding 81354928 . In scientific notation, it is written as 8.1354927 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 54236616 positive integers (up to 81354927) that are relatively prime to 81354927.
81354927 has 4 divisors, whose sum is 108473240
The reverse of 81354927 is 72945318
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
eighty-one million three hundred fifty-four thousand nine hundred twenty-seven
Scientific notation
8.1354927 × 10^7
Engineering notation
8.1354927 × 10^6
Prime Factorization
3 × 27118309
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81354927
Product of the distinct prime numbers
The prime factorization of 81354927 is 3 × 27118309.
Since it has a total of 2 prime factors.
1 , 9 , 23 , 11 , 951 , 722 , 6101 , 6541 , 79053 , 32588 , 832011 , 77583 , 6370105 , 1210608 , 46190295 , 30414845 , 465850877 , 716924827 , 8617224442 , 207020423
n×2
162709854
n×3
244064781
n×4
325419708
n×5
406774635
n÷2
40677463.5
n÷3
27118309
n÷3
20338731.75
n÷5
16270985.4
n2
6618624147175329
n3
5.3845768433389E+23
n4
4.3806185601572E+31
n5
3.5638490317644E+39
2 √n
9019.6966135231
3 √n
433.30591733189
4 √n
94.972083337806
5 √n
38.201179459944
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
-81354926
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 81354927 can be divided by 4 positive divisors.
The sum of these divisors (counting 81354927) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010110000010101111
3
Ternary
12200002020222110
4
Quaternary
10312112002233
5
Quinary
131311324202
6
Senary
12023415103
8
Octal
466260257
10
Decimal
81354927
12
Duodecimal
232b4493
16
Hexadecimal
4d960af
20
Vigesimal
1589767
36
Base36
1cfpv3
md5
60d219f95433aef889c150046e549379
sha1
433cbe2a845c8a528c5c5110ec0234480c1d5724
sha256
0303b7f4751124aea4fd545022413585185a2392c6b4e9233e5df7edd266424f
sha512
17cbe81f4d0bc544eeb2932125aec81177d732861d67826903b6a6ca8d61fe580f1422282de11c5c0bbf19528db5fdfcfd29e178b00f796a64665a44afabc6de
ripemd-160
96287276e10bce05bafefa48975ab55e251d5f88
Diameter
162709854
Circumference
511168081.99307
Area
2.0793020997638E+16
Volume
2.2554862738297E+24
Surface area
8.3172083990552E+16
Circumference
511168081.99307
Perimeter
325419708
Area
6618624147175329
Diagonal
115053241.12927
Surface area
39711744883051974
Volume
5.3845768433389E+23
Space diagonal
140910867.01006
Perimeter
244064781
Area
2.8659483247775E+15
Altitude
70455433.505029
Surface area
2.8659483247775E+15
Volume
6.3457846662416E+22
Height
38351080.376424