81593907 is an odd 8-digits composite number following 81593906
and preceding 81593908 . In scientific notation, it is written as 8.1593907 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 52164000 positive integers (up to 81593907) that are relatively prime to 81593907.
81593907 has 16 divisors, whose sum is 113306880
The reverse of 81593907 is 70939518
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million five hundred ninety-three thousand nine hundred seven
Scientific notation
8.1593907 × 10^7
Engineering notation
8.1593907 × 10^6
Prime Factorization
3 × 29 × 151 × 6211
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81593907
Product of the distinct prime numbers
The prime factorization of 81593907 is 3 × 29 × 151 × 6211.
Since it has a total of 4 prime factors.
7 , 10 , 10 , 54 , 652 , 457 , 5144 , 833 , 51 , 65826 , 71934 , 370029 , 6507481 , 2110300 , 88443296 , 32496413 , 62491963 , 634582420 , 1434887552 , 4890345235
n×2
163187814
n×3
244781721
n×4
326375628
n×5
407969535
n÷2
40796953.5
n÷3
27197969
n÷3
20398476.75
n÷5
16318781.4
n2
6657565659524649
n3
5.4321679326965E+23
n4
4.4323180510882E+31
n5
3.6165014685491E+39
2 √n
9032.9345729945
3 √n
433.72978110593
4 √n
95.041751735722
5 √n
38.22359631932
1 , 3 , 29 , 87 , 151 , 453 , 4379 , 6211 , 13137 , 18633 , 180119 , 540357 , 937861 , 2813583 , 27197969 , 81593907
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81593906
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81593907 can be divided by 16 positive divisors.
The sum of these divisors (counting 81593907) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111010000011000110011
3
Ternary
12200112101210120
4
Quaternary
10313100120303
5
Quinary
131342001112
6
Senary
12032501323
8
Octal
467203063
10
Decimal
81593907
12
Duodecimal
233aa843
16
Hexadecimal
4dd0633
20
Vigesimal
159j4f7
36
Base36
1cku9f
md5
9afa9fe27d140dded1613eea2c52fd4f
sha1
930d0efcf9aac6319df3cccdeafdfd4e2a2554cd
sha256
f4d6d9e48c9ace7fcc3d35af0c1aeafe87e3d8e8fc75c3bc37e8fdbbf517ccdf
sha512
3e79bcf14e1acd9325a9e0c653cd73f1bf866fe33d40b59bf448316e018b82eb1ac9b5eb75198df3a01de342a4508680ed1058165e882aa65b8b4e060f91f535
ripemd-160
8e26efdb0874103626236407d465f3f6dcdb754a
Diameter
163187814
Circumference
512669637.61778
Area
2.0915359366754E+16
Volume
2.2754211827234E+24
Surface area
8.3661437467017E+16
Circumference
512669637.61778
Perimeter
326375628
Area
6657565659524649
Diagonal
115391209.88641
Surface area
39945393957147894
Volume
5.4321679326965E+23
Space diagonal
141324792.51205
Perimeter
244781721
Area
2.8828104942556E+15
Altitude
70662396.256025
Surface area
2.8828104942556E+15
Volume
6.401871302923E+22
Height
38463736.628803