81421106 is an even 8-digits composite number following 81421105
and preceding 81421107 . In scientific notation, it is written as 8.1421106 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 37536384 positive integers (up to 81421106) that are relatively prime to 81421106.
81421106 has 16 divisors, whose sum is 131675544
The reverse of 81421106 is 60112418
Previous prime number is 1913
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
eighty-one million four hundred twenty-one thousand one hundred six
Scientific notation
8.1421106 × 10^7
Engineering notation
8.1421106 × 10^6
Prime Factorization
2 × 13 × 1913 × 1637
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81421106
Product of the distinct prime numbers
The prime factorization of 81421106 is 2 × 13 × 1913 × 1637.
Since it has a total of 4 prime factors.
4 , 6 , 98 , 59 , 275 , 620 , 7837 , 2745 , 71307 , 14391 , 706457 , 508047 , 4722515 , 511520 , 4676474 , 21672535 , 456697682 , 241664868 , 4171230801 , 1296322196
n×2
162842212
n×3
244263318
n×4
325684424
n×5
407105530
n÷2
40710553
n÷3
27140368.666667
n÷3
20355276.5
n÷5
16284221.2
n2
6629396502263236
n3
5.397727953268E+23
n4
4.394889798422E+31
n5
3.5783678813564E+39
2 √n
9023.3644501372
3 √n
433.42337786909
4 √n
94.99139145279
5 √n
38.207392466928
1 , 2 , 13 , 26 , 1637 , 1913 , 3274 , 3826 , 21281 , 24869 , 42562 , 49738 , 3131581 , 6263162 , 40710553 , 81421106
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
-81421105
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 81421106 can be divided by 16 positive divisors.
The sum of these divisors (counting 81421106) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110100110001100110010
3
Ternary
12200012121202112
4
Quaternary
10312212030302
5
Quinary
131320433411
6
Senary
12025045322
8
Octal
466461462
10
Decimal
81421106
12
Duodecimal
23326842
16
Hexadecimal
4da6332
20
Vigesimal
158hcf6
36
Base36
1ch4xe
md5
4d1df76ed9ce3a8ee9e40fb278b45b35
sha1
7f5ca7646a963c77b1ef8aea9f7f65f55288cafd
sha256
5a477676a368f3f1464afc236bcefcd85e2b37c3c98c2810499932b63a815a2b
sha512
b1ed219c8399760795533495f3eac8d4dfb2a706aacde241c489db3f0c94e8d7b1a807838dabc8e18724facf67559516bb664a0e8c0bbfd592bb08f867c25f3d
ripemd-160
300ebd09d8524a777273c1de719bb7637794ad5e
Diameter
162842212
Circumference
511583896.91351
Area
2.0826863349244E+16
Volume
2.2609949978751E+24
Surface area
8.3307453396976E+16
Circumference
511583896.91351
Perimeter
325684424
Area
6629396502263236
Diagonal
115146832.36862
Surface area
39776379013579416
Volume
5.397727953268E+23
Space diagonal
141025492.40045
Perimeter
244263318
Area
2.8706128913598E+15
Altitude
70512746.200226
Surface area
2.8706128913598E+15
Volume
6.3612833979267E+22
Height
38382277.456206