81641617 is an odd 8-digits prime number following 81641616
and preceding 81641618 . In scientific notation, it is written as 8.1641617 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 81641616 positive integers (up to 81641617) that are relatively prime to 81641617.
81641617 has 2 divisors, whose sum is 81641618
The reverse of 81641617 is 71614618
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million six hundred forty-one thousand six hundred seventeen
Scientific notation
8.1641617 × 10^7
Engineering notation
8.1641617 × 10^6
Prime Factorization
81641617
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81641617
Product of the distinct prime numbers
The prime factorization of 81641617 is 81641617.
Since it has a total of 1 prime factors.
1 , 4 , 60 , 54 , 925 , 913 , 9355 , 943 , 45439 , 29676 , 147985 , 20942 , 8158791 , 6765868 , 84371718 , 41191996 , 8951987 , 62885849 , 370189291 , 6477875825
n×2
163283234
n×3
244924851
n×4
326566468
n×5
408208085
n÷2
40820808.5
n÷3
27213872.333333
n÷3
20410404.25
n÷5
16328323.4
n2
6665353626374689
n3
5.4417024793404E+23
n4
4.4426938964626E+31
n5
3.6270871354324E+39
2 √n
9035.5750785437
3 √n
433.8143021878
4 √n
95.055642013211
5 √n
38.228065332912
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81641618
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40820809
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9035.5751338805
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999755027
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81641617 can be divided by 2 positive divisors.
The sum of these divisors (counting 81641617) is 81641618, the average is 40820809.
Base
System
Value
2
Binary
100110111011100000010010001
3
Ternary
12200121211020121
4
Quaternary
10313130002101
5
Quinary
131400012432
6
Senary
12033510241
8
Octal
467340221
10
Decimal
81641617
12
Duodecimal
23412381
16
Hexadecimal
4ddc091
20
Vigesimal
15a540h
36
Base36
1clv2p
md5
1aa94f0ce9fbb0ad0b9306e1892f2f69
sha1
4f017f4fc272a1f8824e6d45bf6af747c824e533
sha256
46bd9421a1bdce36236e8803d81d16d07b9fd2eb4c8bc13db2c1f6245e81156d
sha512
e10845359d06e8aa2cd011e8c08d1dd3f2fdaedaef4f05d2c0f43cb2aa81c672af602d7341d64d3fed30e35d11977dd6b0b542500182a6191ed1aaf7c9b44fa5
ripemd-160
f162126ccc4412c95d5fa059bdf77b45d354e053
Diameter
163283234
Circumference
512969408.38878
Area
2.0939825986197E+16
Volume
2.2794150042823E+24
Surface area
8.3759303944787E+16
Circumference
512969408.38878
Perimeter
326566468
Area
6665353626374689
Diagonal
115458682.01547
Surface area
39992121758248134
Volume
5.4417024793404E+23
Space diagonal
141407428.65608
Perimeter
244924851
Area
2.8861827828236E+15
Altitude
70703714.328039
Surface area
2.8861827828236E+15
Volume
6.4131078739021E+22
Height
38486227.33849