81469739 (number)

81469739 is an odd 8-digits composite number following 81469738 and preceding 81469740. In scientific notation, it is written as 8.1469739 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 70834176 positive integers (up to 81469739) that are relatively prime to 81469739.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1469739 × 10^7
Engineering notation 8.1469739 × 10^6

Prime Factorization of 81469739

Prime Factorization 13 × 19 × 193 × 1709

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81469739
Product of the distinct prime numbers

The prime factorization of 81469739 is 13 × 19 × 193 × 1709. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 5, 89, 16, 374, 653, 6762, 130, 56592, 92489, 362088, 64274, 2498293, 644273, 43178632, 93358831, 428833369, 184410991, 6442016088, 3986652961

Basic calculations (n = 81469739)

Multiplication

n×y
n×2 162939478
n×3 244409217
n×4 325878956
n×5 407348695

Division

n÷y
n÷2 40734869.5
n÷3 27156579.666667
n÷3 20367434.75
n÷5 16293947.8

Exponentiation

ny
n2 6637318372728121
n3 5.4074059548606E+23
n4 4.4053995180954E+31
n5 3.5890674892996E+39

Nth Root

y√n
2√n 9026.05888525
3√n 433.5096555956
4√n 95.005572916803
5√n 38.211955648195

Divisors of 81469739

1, 13, 19, 193, 247, 1709, 2509, 3667, 22217, 32471, 47671, 329837, 422123, 4287881, 6266903, 81469739

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81469738
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81469739 can be divided by 16 positive divisors. The sum of these divisors (counting 81469739) is 1, the average is 0.0625.

Base conversion 81469739

Base System Value
2 Binary 100110110110010000100101011
3 Ternary 12200022002110202
4 Quaternary 10312302010223
5 Quinary 131324012424
6 Senary 12030102415
8 Octal 466620453
10 Decimal 81469739
12 Duodecimal 2334aa0b
16 Hexadecimal 4db212b
20 Vigesimal 1593e6j
36 Base36 1ci6gb

Cryptographic Hash Functions

md5 096a0bed718f1b7556aee117cc521936
sha1 71ccaae741c6baa9e8f8b3480ea924895058cec8
sha256 e2523a5a15016b25c249f19957b94840a60621d6bc95bcfe175d9dad3a25ca04
sha512 54f90a243377d0ec43b278df796593dceb8dc1f6744b74d1cb548fe365796ce6f9f2acff8cccf35e8a8fb05ca45b2fc5dae62accee92c0019ec5a9b152f9623f
ripemd-160 9d0f7768d40296a09f892cba5e0a0fdebb8000ec

81469739 as geometric shapes

Circle

Radius = n
Diameter 162939478
Circumference 511889467.06456
Area 2.0851750639299E+16

Sphere

Radius = n
Volume 2.2650489097024E+24
Surface area 8.3407002557197E+16
Circumference 511889467.06456

Square

Length = n
Perimeter 325878956
Area 6637318372728121
Diagonal 115215609.8168

Cube

Length = n
Surface area 39823910236368726
Volume 5.4074059548606E+23
Space diagonal 141109727.22738

Equilateral Triangle

Length = n
Perimeter 244409217
Area 2.8740431618939E+15
Altitude 70554863.613688

Triangular Pyramid

Length = n
Surface area 2.8740431618939E+15
Volume 6.3726890321841E+22
Height 38405203.272265