81469729 (number)

81469729 is an odd 8-digits composite number following 81469728 and preceding 81469730. In scientific notation, it is written as 8.1469729 × 10^7. The sum of its digits is 46. It has a total of 5 prime factors and 32 positive divisors. There are 66124800 positive integers (up to 81469729) that are relatively prime to 81469729.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred sixty-nine thousand seven hundred twenty-nine

Notation

Scientific notation 8.1469729 × 10^7
Engineering notation 8.1469729 × 10^6

Prime Factorization of 81469729

Prime Factorization 17 × 29 × 11 × 83 × 181

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81469729
Product of the distinct prime numbers

The prime factorization of 81469729 is 17 × 29 × 11 × 83 × 181. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 1, 65, 57, 635, 703, 5307, 7809, 55860, 22189, 693480, 804429, 1987858, 8001126, 44317171, 41083868, 79539849, 559739927, 9174734392, 9129211600

Basic calculations (n = 81469729)

Multiplication

n×y
n×2 162939458
n×3 244409187
n×4 325878916
n×5 407348645

Division

n÷y
n÷2 40734864.5
n÷3 27156576.333333
n÷3 20367432.25
n÷5 16293945.8

Exponentiation

ny
n2 6637316743333441
n3 5.4074039636654E+23
n4 4.4053973551334E+31
n5 3.5890652866004E+39

Nth Root

y√n
2√n 9026.0583312983
3√n 433.50963785856
4√n 95.005570001439
5√n 38.21195471013

Divisors of 81469729

1, 11, 17, 29, 83, 181, 187, 319, 493, 913, 1411, 1991, 2407, 3077, 5249, 5423, 15023, 15521, 26477, 33847, 40919, 57739, 89233, 165253, 255391, 435667, 450109, 981563, 2809301, 4792337, 7406339, 81469729

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81469728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81469729 can be divided by 32 positive divisors. The sum of these divisors (counting 81469729) is 1, the average is 0.03125.

Base conversion 81469729

Base System Value
2 Binary 100110110110010000100100001
3 Ternary 12200022002110101
4 Quaternary 10312302010201
5 Quinary 131324012404
6 Senary 12030102401
8 Octal 466620441
10 Decimal 81469729
12 Duodecimal 2334aa01
16 Hexadecimal 4db2121
20 Vigesimal 1593e69
36 Base36 1ci6g1

Cryptographic Hash Functions

md5 c295ea1b0a1e8ba1e1c00252d411846c
sha1 31bf128c27f0e87adedc28707c670470ec3054f0
sha256 952e7e824f66471d7ea245cb3772b6027ecfdf785bd344d03dfeab6937f317ca
sha512 af968b15e7441646107dd09f600b4b29329939e1b9f9b1daa97c2c1711dee0b931e23281db85aa4c549291c2dd1b5dd147b43b883671223a461b6643c816cf90
ripemd-160 339a0714159c8ebaa57fac9afe763fa7e6fda98a

81469729 as geometric shapes

Circle

Radius = n
Diameter 162939458
Circumference 511889404.2327
Area 2.0851745520405E+16

Sphere

Radius = n
Volume 2.2650480756325E+24
Surface area 8.3406982081619E+16
Circumference 511889404.2327

Square

Length = n
Perimeter 325878916
Area 6637316743333441
Diagonal 115215595.67466

Cube

Length = n
Surface area 39823900460000646
Volume 5.4074039636654E+23
Space diagonal 141109709.90687

Equilateral Triangle

Length = n
Perimeter 244409187
Area 2.8740424563453E+15
Altitude 70554854.953434

Triangular Pyramid

Length = n
Surface area 2.8740424563453E+15
Volume 6.372686685538E+22
Height 38405198.55822