81207072 (number)

81207072 is an even 8-digits composite number following 81207071 and preceding 81207073. In scientific notation, it is written as 8.1207072 × 10^7. The sum of its digits is 27. It has a total of 8 prime factors and 48 positive divisors. There are 26966016 positive integers (up to 81207072) that are relatively prime to 81207072.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seven thousand seventy-two

Notation

Scientific notation 8.1207072 × 10^7
Engineering notation 8.1207072 × 10^6

Prime Factorization of 81207072

Prime Factorization 2 × 2 × 2 × 2 × 2 × 9 × 457 × 617

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 5075442
Product of the distinct prime numbers

The prime factorization of 81207072 is 2 × 2 × 2 × 2 × 2 × 9 × 457 × 617. Since it has a total of 8 prime factors.

Most popular turbo-numbers

2, 8, 30, 9, 410, 153, 6215, 8406, 13175, 2734, 134148, 286955, 2493427, 5910088, 1954473, 2064987, 110470465, 467081677, 4336149739, 6957273067

Basic calculations (n = 81207072)

Multiplication

n×y
n×2 162414144
n×3 243621216
n×4 324828288
n×5 406035360

Division

n÷y
n÷2 40603536
n÷3 27069024
n÷3 20301768
n÷5 16241414.4

Exponentiation

ny
n2 6594588542813184
n3 5.3552722660661E+23
n4 4.3488598049003E+31
n5 3.5315817129444E+39

Nth Root

y√n
2√n 9011.4966570487
3√n 433.04326043819
4√n 94.928903169945
5√n 38.187283937848

Divisors of 81207072

1, 2, 4, 8, 9, 16, 18, 32, 36, 72, 144, 288, 457, 617, 914, 1234, 1828, 2468, 3656, 4113, 4936, 5553, 7312, 8226, 9872, 11106, 14624, 16452, 19744, 22212, 32904, 44424, 65808, 88848, 131616, 177696, 281969, 563938, 1127876, 2255752, 2537721, 4511504, 5075442, 9023008, 10150884, 20301768, 40603536, 81207072

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81207071
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81207072 can be divided by 48 positive divisors. The sum of these divisors (counting 81207072) is 1, the average is 0.020833333333333.

Base conversion 81207072

Base System Value
2 Binary 100110101110001111100100000
3 Ternary 12122210202011100
4 Quaternary 10311301330200
5 Quinary 131242111242
6 Senary 12020314400
8 Octal 465617440
10 Decimal 81207072
12 Duodecimal 23242a00
16 Hexadecimal 4d71f20
20 Vigesimal 157ahdc
36 Base36 1ccjs0

Cryptographic Hash Functions

md5 2d19263e73f85dc298c86ac8573ae92c
sha1 6b826de33851be390e686ed2654b05f427f6c231
sha256 689803727d52a0338a853a2e1f4403ec4dc2f9941de7ef2eafa23ba8fb84042f
sha512 614d1b1782d203b23b97500d57d94588d05bacb1643abde7f6b654d2c365bf309a86cb9807cbdbf1dbb1ae1b568465df8cc0a2757a8d5258b8204e2d8222c093
ripemd-160 b40252f6bad37692aa27a3025b50de1d4efa05e2

81207072 as geometric shapes

Circle

Radius = n
Diameter 162414144
Circumference 510239081.62947
Area 2.0717510919549E+16

Sphere

Radius = n
Volume 2.2432112012062E+24
Surface area 8.2870043678197E+16
Circumference 510239081.62947

Square

Length = n
Perimeter 324828288
Area 6594588542813184
Diagonal 114844142.58301

Cube

Length = n
Surface area 39567531256879104
Volume 5.3552722660661E+23
Space diagonal 140654774.6379

Equilateral Triangle

Length = n
Perimeter 243621216
Area 2.855540602791E+15
Altitude 70327387.318952

Triangular Pyramid

Length = n
Surface area 2.855540602791E+15
Volume 6.3112488907259E+22
Height 38281380.861003