81242017 is an odd 8-digits prime number following 81242016
and preceding 81242018 . In scientific notation, it is written as 8.1242017 × 10^7.
The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors.
There are 81242016 positive integers (up to 81242017) that are relatively prime to 81242017.
81242017 has 2 divisors, whose sum is 81242018
The reverse of 81242017 is 71024218
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million two hundred forty-two thousand seventeen
Scientific notation
8.1242017 × 10^7
Engineering notation
8.1242017 × 10^6
Prime Factorization
81242017
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81242017
Product of the distinct prime numbers
The prime factorization of 81242017 is 81242017.
Since it has a total of 1 prime factors.
7 , 6 , 69 , 7 , 990 , 738 , 5415 , 4351 , 15883 , 31242 , 209584 , 855800 , 9649132 , 4393999 , 85511169 , 91957218 , 515823924 , 742065162 , 5176325757 , 823865408
n×2
162484034
n×3
243726051
n×4
324968068
n×5
406210085
n÷2
40621008.5
n÷3
27080672.333333
n÷3
20310504.25
n÷5
16248403.4
n2
6600265326228289
n3
5.3621886783795E+23
n4
4.3563502376611E+31
n5
3.5391868006602E+39
2 √n
9013.4353606158
3 √n
433.10536720734
4 √n
94.939113965825
5 √n
38.190569920132
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81242018
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40621009
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9013.4354160886
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753822
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81242017 can be divided by 2 positive divisors.
The sum of these divisors (counting 81242017) is 81242018, the average is 40621009.
Base
System
Value
2
Binary
100110101111010011110100001
3
Ternary
12122212112002121
4
Quaternary
10311322132201
5
Quinary
131244221032
6
Senary
12021144241
8
Octal
465723641
10
Decimal
81242017
12
Duodecimal
2325b081
16
Hexadecimal
4d7a7a1
20
Vigesimal
157f50h
36
Base36
1cdaqp
md5
b19ceaf077d7d89cffefe67f47ec8e5e
sha1
689fa23b4db1fe9c741f7a5e890565dacd135389
sha256
678baa490ebe1ae719e6fed7f4343ace76415269456818b05533c8134ff17904
sha512
fdcf3eb439abf38118cc2fc27b28add9ddc2919a9724ee18188fe5b2ad9bba63cf14a0e9eaf3eb0cbd8f9fa03e6e047f47268ff7cd9b4c42a89f8b7be2ebd8dd
ripemd-160
ad1a3496dd94bd7e1b1b88cffb286078b7f2f80c
Diameter
162484034
Circumference
510458647.54003
Area
2.0735345060622E+16
Volume
2.2461083412212E+24
Surface area
8.2941380242489E+16
Circumference
510458647.54003
Perimeter
324968068
Area
6600265326228289
Diagonal
114893562.27595
Surface area
39601591957369734
Volume
5.3621886783795E+23
Space diagonal
140715301.15337
Perimeter
243726051
Area
2.8579987221156E+15
Altitude
70357650.576687
Surface area
2.8579987221156E+15
Volume
6.3193999608065E+22
Height
38297854.091982