81222907 is an odd 8-digits composite number following 81222906
and preceding 81222908 . In scientific notation, it is written as 8.1222907 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 81204480 positive integers (up to 81222907) that are relatively prime to 81222907.
81222907 has 4 divisors, whose sum is 81241336
The reverse of 81222907 is 70922218
Previous prime number is 7297
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million two hundred twenty-two thousand nine hundred seven
Scientific notation
8.1222907 × 10^7
Engineering notation
8.1222907 × 10^6
Prime Factorization
7297 × 11131
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81222907
Product of the distinct prime numbers
The prime factorization of 81222907 is 7297 × 11131.
Since it has a total of 2 prime factors.
8 , 6 , 45 , 18 , 756 , 537 , 3682 , 7055 , 62704 , 9087 , 422249 , 449849 , 6241622 , 1505570 , 21842141 , 29148808 , 888565382 , 919939625 , 29706609 , 5790897665
n×2
162445814
n×3
243668721
n×4
324891628
n×5
406114535
n÷2
40611453.5
n÷3
27074302.333333
n÷3
20305726.75
n÷5
16244581.4
n2
6597160621530649
n3
5.3584056362665E+23
n4
4.3522528266275E+31
n5
3.5350262657765E+39
2 √n
9012.3752141153
3 √n
433.07140574704
4 √n
94.93353050485
5 √n
38.188773090126
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
-81222906
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 81222907 can be divided by 4 positive divisors.
The sum of these divisors (counting 81222907) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101110101110011111011
3
Ternary
12122211112212211
4
Quaternary
10311311303323
5
Quinary
131243113112
6
Senary
12020515551
8
Octal
465656373
10
Decimal
81222907
12
Duodecimal
2324bbb7
16
Hexadecimal
4d75cfb
20
Vigesimal
157ch57
36
Base36
1ccvzv
md5
8f3c80592b314a01078f9c2fde1f0783
sha1
6f367c825e5cc86cc88786196885c0c3a35b229f
sha256
ffc4b591f2048fb25b993347451bcb3ad5cba7e5bc47e223464b07a456f7e25c
sha512
da57ae7a093d726c164df70dfb8027f6590af3cd0116b91c1eb61fff07c16e008f14dc562d616b7d8a59118ea43f24bf567c651a2f2524879392651acc1866af
ripemd-160
873adad69d9a7f6c25b1001bf4184dbac1927a8f
Diameter
162445814
Circumference
510338575.86881
Area
2.0725591343153E+16
Volume
2.2445237042465E+24
Surface area
8.290236537261E+16
Circumference
510338575.86881
Perimeter
324891628
Area
6597160621530649
Diagonal
114866536.65477
Surface area
39582963729183894
Volume
5.3584056362665E+23
Space diagonal
140682201.66244
Perimeter
243668721
Area
2.8566543455459E+15
Altitude
70341100.831221
Surface area
2.8566543455459E+15
Volume
6.3149416029204E+22
Height
38288845.55159