81109712 (number)

81109712 is an even 8-digits composite number following 81109711 and preceding 81109713. In scientific notation, it is written as 8.1109712 × 10^7. The sum of its digits is 29. It has a total of 5 prime factors and 10 positive divisors. There are 40554848 positive integers (up to 81109712) that are relatively prime to 81109712.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred nine thousand seven hundred twelve

Notation

Scientific notation 8.1109712 × 10^7
Engineering notation 8.1109712 × 10^6

Prime Factorization of 81109712

Prime Factorization 2 × 2 × 2 × 2 × 5069357

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10138714
Product of the distinct prime numbers

The prime factorization of 81109712 is 2 × 2 × 2 × 2 × 5069357. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 8, 4, 99, 212, 35, 9697, 2910, 55348, 41595, 539134, 655382, 9126116, 8842858, 9469708, 80857022, 655492791, 676831225, 4985828569, 9362060816

Basic calculations (n = 81109712)

Multiplication

n×y
n×2 162219424
n×3 243329136
n×4 324438848
n×5 405548560

Division

n÷y
n÷2 40554856
n÷3 27036570.666667
n÷3 20277428
n÷5 16221942.4

Exponentiation

ny
n2 6578785380722944
n3 5.3360338754025E+23
n4 4.3280417085614E+31
n5 3.510462165054E+39

Nth Root

y√n
2√n 9006.0930485977
3√n 432.87013121371
4√n 94.900437557462
5√n 38.178122917423

Divisors of 81109712

1, 2, 4, 8, 16, 5069357, 10138714, 20277428, 40554856, 81109712

10 divisors

τ Total Divisors 10
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81109711
Sum of the proper positive divisors of n
A Arithmetic Mean 0.1
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 10
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81109712 can be divided by 10 positive divisors. The sum of these divisors (counting 81109712) is 1, the average is 0.1.

Base conversion 81109712

Base System Value
2 Binary 100110101011010001011010000
3 Ternary 12122121210121102
4 Quaternary 10311122023100
5 Quinary 131231002322
6 Senary 12014243532
8 Octal 465321320
10 Decimal 81109712
12 Duodecimal 231b65a8
16 Hexadecimal 4d5a2d0
20 Vigesimal 156ie5c
36 Base36 1cagnk

Cryptographic Hash Functions

md5 8b86eb3673a834aa898b7c53f0cede35
sha1 34047b48feb50667d55913f6cc2fcad7c8bed148
sha256 0438a524401f8d6ab233b4e61270f622c3a634eea13e7ccdccd522479e49e059
sha512 2070b83cd982d97e314b2bc889b3c387b02a81ffe8b422bf8d042c31c3f2798328f214cab66c84af401aebb5b7b39f7beb7212461e66a705c7829882083f534f
ripemd-160 03c09b9d3c856714658f3723480920d1dfe0da66

81109712 as geometric shapes

Circle

Radius = n
Diameter 162219424
Circumference 509627350.70797
Area 2.0667863821623E+16

Sphere

Radius = n
Volume 2.2351526429694E+24
Surface area 8.2671455286493E+16
Circumference 509627350.70797

Square

Length = n
Perimeter 324438848
Area 6578785380722944
Diagonal 114706454.75058

Cube

Length = n
Surface area 39472712284337664
Volume 5.3360338754025E+23
Space diagonal 140486142.17128

Equilateral Triangle

Length = n
Perimeter 243329136
Area 2.8486976328759E+15
Altitude 70243071.08564

Triangular Pyramid

Length = n
Surface area 2.8486976328759E+15
Volume 6.288576229897E+22
Height 38235484.916859