81421102 is an even 8-digits composite number following 81421101
and preceding 81421103 . In scientific notation, it is written as 8.1421102 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 32 positive divisors.
There are 33868800 positive integers (up to 81421102) that are relatively prime to 81421102.
81421102 has 32 divisors, whose sum is 143725824
The reverse of 81421102 is 20112418
Previous prime number is 641
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million four hundred twenty-one thousand one hundred two
Scientific notation
8.1421102 × 10^7
Engineering notation
8.1421102 × 10^6
Prime Factorization
2 × 7 × 43 × 641 × 211
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81421102
Product of the distinct prime numbers
The prime factorization of 81421102 is 2 × 7 × 43 × 641 × 211.
Since it has a total of 5 prime factors.
7 , 9 , 39 , 39 , 453 , 491 , 8262 , 7759 , 29369 , 59371 , 801385 , 608514 , 9122018 , 427645 , 82845376 , 20487103 , 50963759 , 792935485 , 7906880111 , 8394488076
n×2
162842204
n×3
244263306
n×4
325684408
n×5
407105510
n÷2
40710551
n÷3
27140367.333333
n÷3
20355275.5
n÷5
16284220.4
n2
6629395850894404
n3
5.3977271577405E+23
n4
4.3948889347856E+31
n5
3.5783670023785E+39
2 √n
9023.3642284904
3 √n
433.42337077145
4 √n
94.991390286122
5 √n
38.207392091522
1 , 2 , 7 , 14 , 43 , 86 , 211 , 301 , 422 , 602 , 641 , 1282 , 1477 , 2954 , 4487 , 8974 , 9073 , 18146 , 27563 , 55126 , 63511 , 127022 , 135251 , 192941 , 270502 , 385882 , 946757 , 1893514 , 5815793 , 11631586 , 40710551 , 81421102
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81421101
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81421102 can be divided by 32 positive divisors.
The sum of these divisors (counting 81421102) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110100110001100101110
3
Ternary
12200012121202101
4
Quaternary
10312212030232
5
Quinary
131320433402
6
Senary
12025045314
8
Octal
466461456
10
Decimal
81421102
12
Duodecimal
2332683a
16
Hexadecimal
4da632e
20
Vigesimal
158hcf2
36
Base36
1ch4xa
md5
38ec373192b2b21424468cb99dfab93b
sha1
1929bf0e4b1af6f788347e6525414a5fbe94c9e8
sha256
fc04435367483d5681f100eca20085722f2046585d034ee9b430bdd06e41ba02
sha512
900295981ec22101f8b1f888697bc0547d224a59667a1cef4db9913ea2d6fd54be64941d444992fe3731a740aa44cbaca1653708411ed40677913be1c431102c
ripemd-160
ce4565812dc1d0223d43b76cfb89f99e48064df2
Diameter
162842204
Circumference
511583871.78077
Area
2.0826861302909E+16
Volume
2.2609946646453E+24
Surface area
8.3307445211634E+16
Circumference
511583871.78077
Perimeter
325684408
Area
6629395850894404
Diagonal
115146826.71176
Surface area
39776375105366424
Volume
5.3977271577405E+23
Space diagonal
141025485.47225
Perimeter
244263306
Area
2.8706126093089E+15
Altitude
70512742.736124
Surface area
2.8706126093089E+15
Volume
6.3612824603885E+22
Height
38382275.570588