81277429 is an odd 8-digits composite number following 81277428
and preceding 81277430 . In scientific notation, it is written as 8.1277429 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 79548076 positive integers (up to 81277429) that are relatively prime to 81277429.
81277429 has 4 divisors, whose sum is 83006784
The reverse of 81277429 is 92477218
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million two hundred seventy-seven thousand four hundred twenty-nine
Scientific notation
8.1277429 × 10^7
Engineering notation
8.1277429 × 10^6
Prime Factorization
47 × 1729307
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81277429
Product of the distinct prime numbers
The prime factorization of 81277429 is 47 × 1729307.
Since it has a total of 2 prime factors.
5 , 3 , 40 , 13 , 852 , 935 , 7054 , 627 , 221 , 35600 , 825059 , 778682 , 6542703 , 9079727 , 8334534 , 29994120 , 914448767 , 799487090 , 1319970253 , 5723754047
n×2
162554858
n×3
243832287
n×4
325109716
n×5
406387145
n÷2
40638714.5
n÷3
27092476.333333
n÷3
20319357.25
n÷5
16255485.8
n2
6606020464850041
n3
5.369203593044E+23
n4
4.3639506382018E+31
n5
3.5469068815595E+39
2 √n
9015.399547441
3 √n
433.16828579705
4 √n
94.949457857541
5 √n
38.193898662518
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
-81277428
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 81277429 can be divided by 4 positive divisors.
The sum of these divisors (counting 81277429) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110000011000111110101
3
Ternary
12122221022200011
4
Quaternary
10312003013311
5
Quinary
131301334204
6
Senary
12022020221
8
Octal
466030765
10
Decimal
81277429
12
Duodecimal
23277671
16
Hexadecimal
4d831f5
20
Vigesimal
157jdb9
36
Base36
1ce22d
md5
9368646ecbafded013c2975281c3ffa1
sha1
c565322385dd464662c4a76b48d649478f7550b5
sha256
eb073c87ba77c29804d3843a5301b0bca3c4c564b58e008c54b30823fc1ed370
sha512
d9c365bdba83eda43ea2f2e860a22188e26d4af30d2435b330c94b310b5ba47bab3fb6564bd8bfd5be3a7a1458cead8896a6f3fb68ab0eb7f7637f8a4044a312
ripemd-160
920ce3477474192e02879c01ef92201f06b6e752
Diameter
162554858
Circumference
510681147.69813
Area
2.0753425361837E+16
Volume
2.2490467418046E+24
Surface area
8.3013701447347E+16
Circumference
510681147.69813
Perimeter
325109716
Area
6606020464850041
Diagonal
114943642.40662
Surface area
39636122789100246
Volume
5.369203593044E+23
Space diagonal
140776636.53657
Perimeter
243832287
Area
2.86049077024E+15
Altitude
70388318.268286
Surface area
2.86049077024E+15
Volume
6.3276671170209E+22
Height
38314547.468872