81298983 is an odd 8-digits composite number following 81298982
and preceding 81298984 . In scientific notation, it is written as 8.1298983 × 10^7.
The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors.
There are 54199320 positive integers (up to 81298983) that are relatively prime to 81298983.
81298983 has 4 divisors, whose sum is 108398648
The reverse of 81298983 is 38989218
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighty-one million two hundred ninety-eight thousand nine hundred eighty-three
Scientific notation
8.1298983 × 10^7
Engineering notation
8.1298983 × 10^6
Prime Factorization
3 × 27099661
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81298983
Product of the distinct prime numbers
The prime factorization of 81298983 is 3 × 27099661.
Since it has a total of 2 prime factors.
8 , 8 , 87 , 5 , 719 , 313 , 6622 , 6840 , 26546 , 26355 , 318305 , 811477 , 5961985 , 9273781 , 10837100 , 96970974 , 421049901 , 562704246 , 1120577462 , 9677960575
n×2
162597966
n×3
243896949
n×4
325195932
n×5
406494915
n÷2
40649491.5
n÷3
27099661
n÷3
20324745.75
n÷5
16259796.6
n2
6609524636834289
n3
5.3734763108807E+23
n4
4.3685815924919E+31
n5
3.5516124062212E+39
2 √n
9016.5948672434
3 √n
433.20657311393
4 √n
94.955752154587
5 √n
38.195924179296
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
-81298982
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 81298983 can be divided by 4 positive divisors.
The sum of these divisors (counting 81298983) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110001000011000100111
3
Ternary
12122222102020110
4
Quaternary
10312020120213
5
Quinary
131303031413
6
Senary
12022304103
8
Octal
466103047
10
Decimal
81298983
12
Duodecimal
23288033
16
Hexadecimal
4d88627
20
Vigesimal
1582793
36
Base36
1ceip3
md5
57076eaae781fed65ec400094589fee7
sha1
922ece34e22fe51d99ba07995a390b6ccbaff5fd
sha256
e9c5f96f244187999079349f02feb339702b79c2775292d32d6d673773e4ac02
sha512
ff22c72b6bc41e59cfbabcb778eb6b04b41d647c7e5930c3e597f1da4f47c12ef8a51f8eb81ea806b60f14178dccda40a9511517f819c51b572ae4fcff29a538
ripemd-160
51a101377d89486132382bf211da9a4f24356b57
Diameter
162597966
Circumference
510816575.47424
Area
2.0764434042799E+16
Volume
2.2508364936669E+24
Surface area
8.3057736171197E+16
Circumference
510816575.47424
Perimeter
325195932
Area
6609524636834289
Diagonal
114974124.36574
Surface area
39657147821005734
Volume
5.3734763108807E+23
Space diagonal
140813969.15968
Perimeter
243896949
Area
2.8620081212188E+15
Altitude
70406984.579839
Surface area
2.8620081212188E+15
Volume
6.3327025632817E+22
Height
38324708.121913