81888046 is an even 8-digits composite number following 81888045
and preceding 81888047 . In scientific notation, it is written as 8.1888046 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 40944022 positive integers (up to 81888046) that are relatively prime to 81888046.
81888046 has 4 divisors, whose sum is 122832072
The reverse of 81888046 is 64088818
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-one million eight hundred eighty-eight thousand forty-six
Scientific notation
8.1888046 × 10^7
Engineering notation
8.1888046 × 10^6
Prime Factorization
2 × 40944023
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81888046
Product of the distinct prime numbers
The prime factorization of 81888046 is 2 × 40944023.
Since it has a total of 2 prime factors.
5 , 8 , 98 , 75 , 288 , 399 , 9929 , 6248 , 55216 , 58724 , 246121 , 375861 , 5305033 , 5710018 , 88816630 , 55444163 , 156588780 , 842887111 , 4704614934 , 5329584897
n×2
163776092
n×3
245664138
n×4
327552184
n×5
409440230
n÷2
40944023
n÷3
27296015.333333
n÷3
20472011.5
n÷5
16377609.2
n2
6705652077698116
n3
5.4911274579854E+23
n4
4.4965769787137E+31
n5
3.6821590247545E+39
2 √n
9049.2014012287
3 √n
434.25034223556
4 √n
95.127290517647
5 √n
38.251115220418
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
-81888045
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 81888046 can be divided by 4 positive divisors.
The sum of these divisors (counting 81888046) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000011000001100101110
3
Ternary
12201002100021121
4
Quaternary
10320120030232
5
Quinary
131430404141
6
Senary
12043051154
8
Octal
470301456
10
Decimal
81888046
12
Duodecimal
23510aba
16
Hexadecimal
4e1832e
20
Vigesimal
15bg026
36
Base36
1cr57y
md5
038637c9d253fcf06189f900b0fec996
sha1
586d8f831bf910e4b6cc9f867c949e47b969f37f
sha256
07a43290ab678a245395f1a2811cb8c57d597c29d2d9a9dde6f674d1994ab6e9
sha512
e84ab98a1ad792c94b97c6bd3ee2d591a0d9a449a181108a8e5a9825f39037d1bf940839d27ffabb07cd8aef185e2fd8422f772bfed65bd323e91f49c04faff2
ripemd-160
2c6e84653fd4206f5ad96f1adbb4f7272141afab
Diameter
163776092
Circumference
514517767.46085
Area
2.1066427304826E+16
Volume
2.3001180909243E+24
Surface area
8.4265709219302E+16
Circumference
514517767.46085
Perimeter
327552184
Area
6705652077698116
Diagonal
115807185.24943
Surface area
40233912466188696
Volume
5.4911274579854E+23
Space diagonal
141834256.20454
Perimeter
245664138
Area
2.9036325241132E+15
Altitude
70917128.102269
Surface area
2.9036325241132E+15
Volume
6.4713557698352E+22
Height
38602395.083144