81489752 (number)

81489752 is an even 8-digits composite number following 81489751 and preceding 81489753. In scientific notation, it is written as 8.1489752 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 8 positive divisors. There are 40744872 positive integers (up to 81489752) that are relatively prime to 81489752.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand seven hundred fifty-two

Notation

Scientific notation 8.1489752 × 10^7
Engineering notation 8.1489752 × 10^6

Prime Factorization of 81489752

Prime Factorization 2 × 2 × 2 × 10186219

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20372438
Product of the distinct prime numbers

The prime factorization of 81489752 is 2 × 2 × 2 × 10186219. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 45, 15, 659, 358, 4092, 3074, 81277, 12391, 826809, 974839, 9047247, 7041644, 42893853, 11410915, 307679060, 523059256, 2815698975, 8864054516

Basic calculations (n = 81489752)

Multiplication

n×y
n×2 162979504
n×3 244469256
n×4 325959008
n×5 407448760

Division

n÷y
n÷2 40744876
n÷3 27163250.666667
n÷3 20372438
n÷5 16297950.4

Exponentiation

ny
n2 6640579681021504
n3 5.4113919134268E+23
n4 4.4097298499996E+31
n5 3.5934779186346E+39

Nth Root

y√n
2√n 9027.1674405652
3√n 433.54514983161
4√n 95.011406897094
5√n 38.213832813253

Divisors of 81489752

1, 2, 4, 8, 10186219, 20372438, 40744876, 81489752

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489751
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489752 can be divided by 8 positive divisors. The sum of these divisors (counting 81489752) is 1, the average is 0.125.

Base conversion 81489752

Base System Value
2 Binary 100110110110110111101011000
3 Ternary 12200100002220222
4 Quaternary 10312312331120
5 Quinary 131330133002
6 Senary 12030335212
8 Octal 466667530
10 Decimal 81489752
12 Duodecimal 2335a508
16 Hexadecimal 4db6f58
20 Vigesimal 159647c
36 Base36 1cilw8

Cryptographic Hash Functions

md5 8244617191687aec5ebb46f7eba0a517
sha1 aec285c1eedf5577d070d6c3deb2b39e39a6eae0
sha256 1a7b37fac7e00593d37f5e29c4a5cbf84e368197341e8c31b8f5ece3df697bc8
sha512 9c87772154cf8391c8482ba9fa7b99d33adbf7a54e6132f80f6c5133a981556efd40c7e4bfba018dc8e13140c846e34cf34a86f0c471f0fdaec5fe74883c6bfd
ripemd-160 a905acfd800ff846aa866024a58c5e0e97397419

81489752 as geometric shapes

Circle

Radius = n
Diameter 162979504
Circumference 512015212.45211
Area 2.0861996341475E+16

Sphere

Radius = n
Volume 2.2667185441223E+24
Surface area 8.3447985365899E+16
Circumference 512015212.45211

Square

Length = n
Perimeter 325959008
Area 6640579681021504
Diagonal 115243912.47282

Cube

Length = n
Surface area 39843478086129024
Volume 5.4113919134268E+23
Space diagonal 141144390.76019

Equilateral Triangle

Length = n
Perimeter 244469256
Area 2.8754553498097E+15
Altitude 70572195.380094

Triangular Pyramid

Length = n
Surface area 2.8754553498097E+15
Volume 6.3773865294036E+22
Height 38414637.49094