81277428 (number)

81277428 is an even 8-digits composite number following 81277427 and preceding 81277429. In scientific notation, it is written as 8.1277428 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors. There are 27069984 positive integers (up to 81277428) that are relatively prime to 81277428.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-seven thousand four hundred twenty-eight

Notation

Scientific notation 8.1277428 × 10^7
Engineering notation 8.1277428 × 10^6

Prime Factorization of 81277428

Prime Factorization 2 × 2 × 3 × 1747 × 3877

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40638714
Product of the distinct prime numbers

The prime factorization of 81277428 is 2 × 2 × 3 × 1747 × 3877. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 4, 31, 21, 803, 393, 9946, 9798, 57585, 29844, 335009, 950961, 7255980, 680796, 81027066, 45384532, 422853480, 755774004, 206788995, 6526910366

Basic calculations (n = 81277428)

Multiplication

n×y
n×2 162554856
n×3 243832284
n×4 325109712
n×5 406387140

Division

n÷y
n÷2 40638714
n÷3 27092476
n÷3 20319357
n÷5 16255485.6

Exponentiation

ny
n2 6606020302295184
n3 5.3692033948634E+23
n4 4.3639504234336E+31
n5 3.546906663362E+39

Nth Root

y√n
2√n 9015.3994919804
3√n 433.16828402055
4√n 94.949457565488
5√n 38.193898568534

Divisors of 81277428

1, 2, 3, 4, 6, 12, 1747, 3494, 3877, 5241, 6988, 7754, 10482, 11631, 15508, 20964, 23262, 46524, 6773119, 13546238, 20319357, 27092476, 40638714, 81277428

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81277427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81277428 can be divided by 24 positive divisors. The sum of these divisors (counting 81277428) is 1, the average is 0.041666666666667.

Base conversion 81277428

Base System Value
2 Binary 100110110000011000111110100
3 Ternary 12122221022200010
4 Quaternary 10312003013310
5 Quinary 131301334203
6 Senary 12022020220
8 Octal 466030764
10 Decimal 81277428
12 Duodecimal 23277670
16 Hexadecimal 4d831f4
20 Vigesimal 157jdb8
36 Base36 1ce22c

Cryptographic Hash Functions

md5 2ebde79817918530354ab7497beded4f
sha1 14a56f7b166a7997e1fd4ca8b9fe36797a622ce7
sha256 4f1881a1489690248925ca8d486d846f30ea62f57299be9e7fe1e6a42896bf58
sha512 9e0737c8787f31b02f737520b82cfa800ce3fe6f1d677f5c7c6fa066550c4ad2650184297a64d24fec0317c7819640a8fcbd05fed593200b3ecf5918e442b27f
ripemd-160 45b804afcf2f71e12cbb022e78d7452f84f7c986

81277428 as geometric shapes

Circle

Radius = n
Diameter 162554856
Circumference 510681141.41495
Area 2.0753424851156E+16

Sphere

Radius = n
Volume 2.2490466587909E+24
Surface area 8.3013699404622E+16
Circumference 510681141.41495

Square

Length = n
Perimeter 325109712
Area 6606020302295184
Diagonal 114943640.9924

Cube

Length = n
Surface area 39636121813771104
Volume 5.3692033948634E+23
Space diagonal 140776634.80452

Equilateral Triangle

Length = n
Perimeter 243832284
Area 2.8604906998517E+15
Altitude 70388317.402261

Triangular Pyramid

Length = n
Surface area 2.8604906998517E+15
Volume 6.3276668834628E+22
Height 38314546.997468