81276904 is an even 8-digits composite number following 81276903
and preceding 81276905 . In scientific notation, it is written as 8.1276904 × 10^7.
The sum of its digits is 37. It has a total of 4 prime factors and 8 positive divisors.
There are 40638448 positive integers (up to 81276904) that are relatively prime to 81276904.
81276904 has 8 divisors, whose sum is 152394210
The reverse of 81276904 is 40967218
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million two hundred seventy-six thousand nine hundred four
Scientific notation
8.1276904 × 10^7
Engineering notation
8.1276904 × 10^6
Prime Factorization
2 × 2 × 2 × 10159613
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20319226
Product of the distinct prime numbers
The prime factorization of 81276904 is 2 × 2 × 2 × 10159613.
Since it has a total of 4 prime factors.
9 , 1 , 93 , 42 , 989 , 404 , 508 , 4829 , 31538 , 44022 , 288547 , 71113 , 6938967 , 635558 , 13289796 , 77368831 , 864166676 , 907393268 , 5387446260 , 8679933489
n×2
162553808
n×3
243830712
n×4
325107616
n×5
406384520
n÷2
40638452
n÷3
27092301.333333
n÷3
20319226
n÷5
16255380.8
n2
6605935123825216
n3
5.3690995488937E+23
n4
4.3638378860188E+31
n5
3.5467923293351E+39
2 √n
9015.370430548
3 √n
433.16735313206
4 √n
94.949304529038
5 √n
38.193849320779
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81276903
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81276904 can be divided by 8 positive divisors.
The sum of these divisors (counting 81276904) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000010111111101000
3
Ternary
12122221021221201
4
Quaternary
10312002333220
5
Quinary
131301330104
6
Senary
12022013544
8
Octal
466027750
10
Decimal
81276904
12
Duodecimal
232772b4
16
Hexadecimal
4d82fe8
20
Vigesimal
157jc54
36
Base36
1ce1ns
md5
972c2cea41eed5dfaeed4f988827b502
sha1
0069e0bae3bf66aa5dd3398952673d20f57f69e9
sha256
91964b857ca6b00706c6cc2550179248f0bac7c1fb498b69561b8687c7bff2e9
sha512
3d2ef3e8171f150109446e97ad1da1648650ec6af557f41f5a9e1604d23b38c0d5e461a93fa0e0b73c6b9c3a9043bafbbcaf011206758c24bf5ba5ad48d45c29
ripemd-160
27ba2341aa7858dec3d27675772058b9075ff40f
Diameter
162553808
Circumference
510677849.02585
Area
2.07531572551E+16
Volume
2.2490031598929E+24
Surface area
8.30126290204E+16
Circumference
510677849.02585
Perimeter
325107616
Area
6605935123825216
Diagonal
114942899.9445
Surface area
39635610742951296
Volume
5.3690995488937E+23
Space diagonal
140775727.2099
Perimeter
243830712
Area
2.8604538164923E+15
Altitude
70387863.604949
Surface area
2.8604538164923E+15
Volume
6.327544499814E+22
Height
38314299.981499