81122956 is an even 8-digits composite number following 81122955
and preceding 81122957 . In scientific notation, it is written as 8.1122956 × 10^7.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 40444560 positive integers (up to 81122956) that are relatively prime to 81122956.
81122956 has 12 divisors, whose sum is 142374400
The reverse of 81122956 is 65922118
Previous prime number is 349
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million one hundred twenty-two thousand nine hundred fifty-six
Scientific notation
8.1122956 × 10^7
Engineering notation
8.1122956 × 10^6
Prime Factorization
2 × 2 × 349 × 58111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
40561478
Product of the distinct prime numbers
The prime factorization of 81122956 is 2 × 2 × 349 × 58111.
Since it has a total of 4 prime factors.
6 , 3 , 47 , 30 , 620 , 593 , 1027 , 9347 , 63767 , 87289 , 295932 , 247660 , 4166094 , 5539449 , 31321429 , 2943349 , 280222977 , 641801565 , 6263479529 , 5893837203
n×2
162245912
n×3
243368868
n×4
324491824
n×5
405614780
n÷2
40561478
n÷3
27040985.333333
n÷3
20280739
n÷5
16224591.2
n2
6580933990177936
n3
5.3386481852411E+23
n4
4.3308692183079E+31
n5
3.5133291303855E+39
2 √n
9006.8282985744
3 √n
432.89369033247
4 √n
94.904311274959
5 √n
38.179369619023
1 , 2 , 4 , 349 , 698 , 1396 , 58111 , 116222 , 232444 , 20280739 , 40561478 , 81122956
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81122955
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81122956 can be divided by 12 positive divisors.
The sum of these divisors (counting 81122956) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110101011101011010001100
3
Ternary
12122122110202221
4
Quaternary
10311131122030
5
Quinary
131231413311
6
Senary
12014425124
8
Octal
465353214
10
Decimal
81122956
12
Duodecimal
232021a4
16
Hexadecimal
4d5d68c
20
Vigesimal
157077g
36
Base36
1caqvg
md5
51cb952450cb2ab8553e998ed341e514
sha1
d8c67b870f5e34945675c95445fe5f4fa578c408
sha256
b3f97c8b359789d5c086791cef726cf2f705829eb78b20af6e74baa260800992
sha512
07bf97438f6423641b66a3a66430ce3099a74024d4eb6b6cc784fde7854ca02c04431b0fc298ca49808b05af608f024a168356a679930908e6f8888c49909e43
ripemd-160
c94208647cbf201e6599fc2fdfc7f50e6f58fecd
Diameter
162245912
Circumference
509710565.21418
Area
2.0674613877302E+16
Volume
2.2362477225139E+24
Surface area
8.2698455509209E+16
Circumference
509710565.21418
Perimeter
324491824
Area
6580933990177936
Diagonal
114725184.595
Surface area
39485603941067616
Volume
5.3386481852411E+23
Space diagonal
140509081.45217
Perimeter
243368868
Area
2.8496280080613E+15
Altitude
70254540.726087
Surface area
2.8496280080613E+15
Volume
6.2916572235887E+22
Height
38241728.198332