81420010 is an even 8-digits composite number following 81420009
and preceding 81420011 . In scientific notation, it is written as 8.1420010 × 10^7.
The sum of its digits is 16. It has a total of 4 prime factors and 16 positive divisors.
There are 27915408 positive integers (up to 81420010) that are relatively prime to 81420010.
81420010 has 16 divisors, whose sum is 167492736
The reverse of 81420010 is 01002418
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 16
Digital Root 7
Name
eighty-one million four hundred twenty thousand ten
Scientific notation
8.1420010 × 10^7
Engineering notation
8.1420010 × 10^6
Prime Factorization
2 × 5 × 7 × 1163143
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81420010
Product of the distinct prime numbers
The prime factorization of 81420010 is 2 × 5 × 7 × 1163143.
Since it has a total of 4 prime factors.
4 , 3 , 68 , 24 , 948 , 670 , 5630 , 851 , 80302 , 64449 , 604439 , 471019 , 4300989 , 6289679 , 30296222 , 20957884 , 455917362 , 360184274 , 2171740451 , 5771229509
n×2
162840020
n×3
244260030
n×4
325680040
n×5
407100050
n÷2
40710005
n÷3
27140003.333333
n÷3
20355002.5
n÷5
16284002
n2
6629218028400100
n3
5.3975099816452E+23
n4
4.3946531668065E+31
n5
3.5781270478792E+39
2 √n
9023.3037187053
3 √n
433.42143310654
4 √n
94.99107178417
5 √n
38.207289605324
1 , 2 , 5 , 7 , 10 , 14 , 35 , 70 , 1163143 , 2326286 , 5815715 , 8142001 , 11631430 , 16284002 , 40710005 , 81420010
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
-81420009
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 81420010 can be divided by 16 positive divisors.
The sum of these divisors (counting 81420010) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110100101111011101010
3
Ternary
12200012120020221
4
Quaternary
10312211323222
5
Quinary
131320420020
6
Senary
12025040254
8
Octal
466457352
10
Decimal
81420010
12
Duodecimal
2332608a
16
Hexadecimal
4da5eea
20
Vigesimal
158ha0a
36
Base36
1ch42y
md5
7d3bd5a7ba86764e78a79402f8e5f260
sha1
62d9e880dbef9a01c1c149dac27db72939472299
sha256
33441ecd9000cf26e599dee46f46b84492e0734dec2a64dbf56f96b78ea2a244
sha512
c2310ffc2bc6cfaeaea8fe13dc0df11ae3c94b5e1f456311af5cb2a0f4307a4da991791b6442389990cb18536d95a1d4f1fda88349a6c69951691bbf22d00d03
ripemd-160
34c920f9b0782546202f02a93ee72ed65fcf00f2
Diameter
162840020
Circumference
511577010.54241
Area
2.0826302657067E+16
Volume
2.2609036941352E+24
Surface area
8.3305210628267E+16
Circumference
511577010.54241
Perimeter
325680040
Area
6629218028400100
Diagonal
115145282.39055
Surface area
39775308170400600
Volume
5.3975099816452E+23
Space diagonal
141023594.07277
Perimeter
244260030
Area
2.8705356099101E+15
Altitude
70511797.036383
Surface area
2.8705356099101E+15
Volume
6.3610265159056E+22
Height
38381760.796851