81123023 is an odd 8-digits prime number following 81123022
and preceding 81123024 . In scientific notation, it is written as 8.1123023 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 81123022 positive integers (up to 81123023) that are relatively prime to 81123023.
81123023 has 2 divisors, whose sum is 81123024
The reverse of 81123023 is 32032118
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million one hundred twenty-three thousand twenty-three
Scientific notation
8.1123023 × 10^7
Engineering notation
8.1123023 × 10^6
Prime Factorization
81123023
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81123023
Product of the distinct prime numbers
The prime factorization of 81123023 is 81123023.
Since it has a total of 1 prime factors.
6 , 8 , 29 , 90 , 724 , 555 , 9687 , 4929 , 41931 , 32695 , 255342 , 719621 , 4640837 , 7657515 , 68646644 , 22139503 , 767679660 , 677966155 , 7134957686 , 5219919922
n×2
162246046
n×3
243369069
n×4
324492092
n×5
405615115
n÷2
40561511.5
n÷3
27041007.666667
n÷3
20280755.75
n÷5
16224604.6
n2
6580944860658529
n3
5.3386614129293E+23
n4
4.3308835259028E+31
n5
3.5133436388213E+39
2 √n
9006.8320179739
3 √n
432.89380950905
4 √n
94.904330870482
5 √n
38.179375925541
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81123024
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40561512
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9006.8320734873
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753461
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81123023 can be divided by 2 positive divisors.
The sum of these divisors (counting 81123023) is 81123024, the average is 40561512.
Base
System
Value
2
Binary
100110101011101011011001111
3
Ternary
12122122110212102
4
Quaternary
10311131123033
5
Quinary
131231414043
6
Senary
12014425315
8
Octal
465353317
10
Decimal
81123023
12
Duodecimal
2320223b
16
Hexadecimal
4d5d6cf
20
Vigesimal
15707b3
36
Base36
1caqxb
md5
7b54d2ed73b994d6a2c8196a3928b92a
sha1
0111e38fc0fcb327e67df94d431485b874fbed88
sha256
0a5a9f4f7652f8b0723787700896027a9301b1c1c92e9490ac7dc3555f71827b
sha512
cc4af4163611074615f8006025cc36043f33d956e0629be1209aa05c02fa114b626da00ca4fdc6553e77c038dba729c1fc578ed72a68c869afe5365f1077abf5
ripemd-160
fc90972a34e6cd303e5a87bb44c2a91ea162b488
Diameter
162246046
Circumference
509710986.18759
Area
2.0674648027924E+16
Volume
2.2362532633149E+24
Surface area
8.2698592111697E+16
Circumference
509710986.18759
Perimeter
324492092
Area
6580944860658529
Diagonal
114725279.3473
Surface area
39485669163951174
Volume
5.3386614129293E+23
Space diagonal
140509197.49958
Perimeter
243369069
Area
2.8496327151175E+15
Altitude
70254598.749789
Surface area
2.8496327151175E+15
Volume
6.2916728125688E+22
Height
38241759.782435