81122903 is an odd 8-digits composite number following 81122902
and preceding 81122904 . In scientific notation, it is written as 8.1122903 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 80335200 positive integers (up to 81122903) that are relatively prime to 81122903.
81122903 has 4 divisors, whose sum is 81910608
The reverse of 81122903 is 30922118
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million one hundred twenty-two thousand nine hundred three
Scientific notation
8.1122903 × 10^7
Engineering notation
8.1122903 × 10^6
Prime Factorization
103 × 787601
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81122903
Product of the distinct prime numbers
The prime factorization of 81122903 is 103 × 787601.
Since it has a total of 2 prime factors.
5 , 9 , 87 , 27 , 960 , 361 , 4194 , 4271 , 96692 , 74399 , 596067 , 614392 , 7749839 , 5861846 , 65701220 , 8368138 , 460615271 , 88313135 , 9770270 , 795353721
n×2
162245806
n×3
243368709
n×4
324491612
n×5
405614515
n÷2
40561451.5
n÷3
27040967.666667
n÷3
20280725.75
n÷5
16224580.6
n2
6580925391147409
n3
5.3386377215629E+23
n4
4.3308579003849E+31
n5
3.5133176535971E+39
2 √n
9006.8253563617
3 √n
432.89359605841
4 √n
94.904295774015
5 √n
38.179364630281
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
-81122902
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 81122903 can be divided by 4 positive divisors.
The sum of these divisors (counting 81122903) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011101011001010111
3
Ternary
12122122110200222
4
Quaternary
10311131121113
5
Quinary
131231413103
6
Senary
12014424555
8
Octal
465353127
10
Decimal
81122903
12
Duodecimal
2320215b
16
Hexadecimal
4d5d657
20
Vigesimal
1570753
36
Base36
1caqtz
md5
86249f7ef9e94e7cf9a107494ade3559
sha1
4980eb8829626357132cfb1c4b3de348d03dee65
sha256
f37f85d54d5acda32fae0b9f359eadc9359134b23c2a96b01798ff4c9323dc60
sha512
ee25dde007a0a14266b95e616e5380c2d2ed697592963b128997bc1488025b7c901e7cf19098cd855ae106ec1280b6233150ed6873a421fa6f37bcad55408719
ripemd-160
43b26239d54830ec2d247bf10c1dc53a83d3f411
Diameter
162245806
Circumference
509710232.20535
Area
2.0674586862651E+16
Volume
2.2362433394986E+24
Surface area
8.2698347450605E+16
Circumference
509710232.20535
Perimeter
324491612
Area
6580925391147409
Diagonal
114725109.64168
Surface area
39485552346884454
Volume
5.3386377215629E+23
Space diagonal
140508989.65348
Perimeter
243368709
Area
2.8496242845718E+15
Altitude
70254494.826741
Surface area
2.8496242845718E+15
Volume
6.2916448920257E+22
Height
38241703.213892