81431102 is an even 8-digits composite number following 81431101
and preceding 81431103 . In scientific notation, it is written as 8.1431102 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 40715550 positive integers (up to 81431102) that are relatively prime to 81431102.
81431102 has 4 divisors, whose sum is 122146656
The reverse of 81431102 is 20113418
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million four hundred thirty-one thousand one hundred two
Scientific notation
8.1431102 × 10^7
Engineering notation
8.1431102 × 10^6
Prime Factorization
2 × 40715551
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81431102
Product of the distinct prime numbers
The prime factorization of 81431102 is 2 × 40715551.
Since it has a total of 2 prime factors.
9 , 5 , 51 , 86 , 931 , 532 , 7190 , 7338 , 40465 , 37560 , 85540 , 759033 , 9358883 , 9508376 , 8810797 , 42597111 , 947471042 , 861263271 , 426651230 , 3257097380
n×2
162862204
n×3
244293306
n×4
325724408
n×5
407155510
n÷2
40715551
n÷3
27143700.666667
n÷3
20357775.5
n÷5
16286220.4
n2
6631024372934404
n3
5.3997162207691E+23
n4
4.397048423445E+31
n5
3.5805649866849E+39
2 √n
9023.9183285311
3 √n
433.44111414989
4 √n
94.994306821678
5 √n
38.208330558683
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
-81431101
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 81431102 can be divided by 4 positive divisors.
The sum of these divisors (counting 81431102) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110101000101000111110
3
Ternary
12200020010110202
4
Quaternary
10312220220332
5
Quinary
131321243402
6
Senary
12025203502
8
Octal
466505076
10
Decimal
81431102
12
Duodecimal
23330592
16
Hexadecimal
4da8a3e
20
Vigesimal
158ihf2
36
Base36
1chcn2
md5
1edf39b4b5f9c902834460fd970f4535
sha1
e3c7990473531c338607fc3902d637dc1f3a2641
sha256
b21268f38ced5ace4f8a46993714b61f4d4e632540c5bb5cd9a44f7ab0f4a620
sha512
ad1eccd6dc9069ae8fdd691624530e309ccb0087dc1120654d6132c7932d62d274576b055bd5c5c692ae888ff13212d4cb607d4d71d931367d3cf50d9b53fc39
ripemd-160
7bd4822f4dfdda5a307c255dd7f3b652e8bcc034
Diameter
162862204
Circumference
511646703.63384
Area
2.0831977455786E+16
Volume
2.2618278414184E+24
Surface area
8.3327909823142E+16
Circumference
511646703.63384
Perimeter
325724408
Area
6631024372934404
Diagonal
115160968.84739
Surface area
39786146237606424
Volume
5.3997162207691E+23
Space diagonal
141042805.98032
Perimeter
244293306
Area
2.8713177800375E+15
Altitude
70521402.990162
Surface area
2.8713177800375E+15
Volume
6.363626593648E+22
Height
38386989.615796