81890003 is an odd 8-digits composite number following 81890002
and preceding 81890004 . In scientific notation, it is written as 8.1890003 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 68843520 positive integers (up to 81890003) that are relatively prime to 81890003.
81890003 has 8 divisors, whose sum is 84921216
The reverse of 81890003 is 30009818
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million eight hundred ninety thousand three
Scientific notation
8.1890003 × 10^7
Engineering notation
8.1890003 × 10^6
Prime Factorization
221 × 31 × 11953
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81890003
Product of the distinct prime numbers
The prime factorization of 81890003 is 221 × 31 × 11953.
Since it has a total of 3 prime factors.
9 , 3 , 92 , 10 , 876 , 649 , 8547 , 3568 , 81512 , 47752 , 660357 , 337027 , 3620532 , 8398610 , 83166472 , 13538003 , 791654131 , 123592198 , 3954896706 , 198568865
n×2
163780006
n×3
245670009
n×4
327560012
n×5
409450015
n÷2
40945001.5
n÷3
27296667.666667
n÷3
20472500.75
n÷5
16378000.6
n2
6705972591340009
n3
5.4915211562275E+23
n4
4.4970068395803E+31
n5
3.6825990358425E+39
2 √n
9049.3095316715
3 √n
434.25380151601
4 √n
95.127858862015
5 √n
38.251298047389
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81890002
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81890003 can be divided by 8 positive divisors.
The sum of these divisors (counting 81890003) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000011000101011010011
3
Ternary
12201002102222002
4
Quaternary
10320120223103
5
Quinary
131430440003
6
Senary
12043104215
8
Octal
470305323
10
Decimal
81890003
12
Duodecimal
2351206b
16
Hexadecimal
4e18ad3
20
Vigesimal
15bg503
36
Base36
1cr6qb
md5
c9b689bbd274707b724655bdec93092c
sha1
ab1edb3ee6c50e64b229cab12b5ab58e8d828c23
sha256
964cc85d5376372c5e2eb1e777496641290b94b0be852065bed1e4ff85dcd179
sha512
b3b892d914560a059a8ec4fea82e5493064976e6d1b15300b7059439c61c4a782a762ccbb3c8cd0de378b7f19e346b3072ef6f03cc5c60eca9e9ba7b7dace6ce
ripemd-160
1544e6d57725bbbc67b1e23b6d29104250bcb2bf
Diameter
163780006
Circumference
514530063.65449
Area
2.1067434228128E+16
Volume
2.3002830028583E+24
Surface area
8.4269736912513E+16
Circumference
514530063.65449
Perimeter
327560012
Area
6705972591340009
Diagonal
115809952.86537
Surface area
40235835548040054
Volume
5.4915211562275E+23
Space diagonal
141837645.82797
Perimeter
245670009
Area
2.9037713105913E+15
Altitude
70918822.913984
Surface area
2.9037713105913E+15
Volume
6.4718197476631E+22
Height
38603317.621791