81492542 (number)

81492542 is an even 8-digits composite number following 81492541 and preceding 81492543. In scientific notation, it is written as 8.1492542 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 38614752 positive integers (up to 81492542) that are relatively prime to 81492542.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-two thousand five hundred forty-two

Notation

Scientific notation 8.1492542 × 10^7
Engineering notation 8.1492542 × 10^6

Prime Factorization of 81492542

Prime Factorization 2 × 109 × 23 × 16253

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81492542
Product of the distinct prime numbers

The prime factorization of 81492542 is 2 × 109 × 23 × 16253. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 10, 28, 51, 258, 86, 8549, 9494, 63036, 24079, 504061, 501075, 1950173, 6077866, 7711571, 16131019, 776890700, 374034488, 5889090413, 9165860046

Basic calculations (n = 81492542)

Multiplication

n×y
n×2 162985084
n×3 244477626
n×4 325970168
n×5 407462710

Division

n÷y
n÷2 40746271
n÷3 27164180.666667
n÷3 20373135.5
n÷5 16298508.4

Exponentiation

ny
n2 6641034401621764
n3 5.4119477489761E+23
n4 4.4103337923524E+31
n5 3.594093118073E+39

Nth Root

y√n
2√n 9027.3219727669
3√n 433.55009759962
4√n 95.012220123345
5√n 38.214094478385

Divisors of 81492542

1, 2, 23, 46, 109, 218, 2507, 5014, 16253, 32506, 373819, 747638, 1771577, 3543154, 40746271, 81492542

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 -81492541
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 81492542 can be divided by 16 positive divisors. The sum of these divisors (counting 81492542) is 1, the average is 0.0625.

Base conversion 81492542

Base System Value
2 Binary 100110110110111101000111110
3 Ternary 12200100020202022
4 Quaternary 10312313220332
5 Quinary 131330230132
6 Senary 12030400142
8 Octal 466675076
10 Decimal 81492542
12 Duodecimal 23360052
16 Hexadecimal 4db7a3e
20 Vigesimal 1596b72
36 Base36 1cio1q

Cryptographic Hash Functions

md5 eafbbfc235ffb9a8b73239830e243df3
sha1 53d3ffcf20d5a37892d820efa2714fb337aef541
sha256 fd973e645ce8dadf607b38e3b5b19b773c876c1c0a1f1626778556a164f0039a
sha512 b39736ada0b0ef61221d48553b3d6ef0e5cf6b47243f4d1b54fa1c14bd5379148f70e2c4e511aa8a96c5f3d77227e2fc20150af857237ae0b4f0cddb59b89a93
ripemd-160 bc59cd473bbcc7cf14bf59228b3d3069a8408cd8

81492542 as geometric shapes

Circle

Radius = n
Diameter 162985084
Circumference 512032742.53912
Area 2.0863424888372E+16

Sphere

Radius = n
Volume 2.2669513719727E+24
Surface area 8.3453699553488E+16
Circumference 512032742.53912

Square

Length = n
Perimeter 325970168
Area 6641034401621764
Diagonal 115247858.12866

Cube

Length = n
Surface area 39846206409730584
Volume 5.4119477489761E+23
Space diagonal 141149223.18194

Equilateral Triangle

Length = n
Perimeter 244477626
Area 2.8756522496054E+15
Altitude 70574611.59097

Triangular Pyramid

Length = n
Surface area 2.8756522496054E+15
Volume 6.3780415878804E+22
Height 38415952.709553