81494789 (number)

81494789 is an odd 8-digits prime number following 81494788 and preceding 81494790. In scientific notation, it is written as 8.1494789 × 10^7. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 81494788 positive integers (up to 81494789) that are relatively prime to 81494789.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-four thousand seven hundred eighty-nine

Notation

Scientific notation 8.1494789 × 10^7
Engineering notation 8.1494789 × 10^6

Prime Factorization of 81494789

Prime Factorization 81494789

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81494789
Product of the distinct prime numbers

The prime factorization of 81494789 is 81494789. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 4, 47, 52, 744, 807, 4593, 5539, 38321, 10097, 5138, 606164, 4605576, 6268189, 6097214, 73657081, 433139814, 281656495, 8369455289, 4920983272

Basic calculations (n = 81494789)

Multiplication

n×y
n×2 162989578
n×3 244484367
n×4 325979156
n×5 407473945

Division

n÷y
n÷2 40747394.5
n÷3 27164929.666667
n÷3 20373697.25
n÷5 16298957.8

Exponentiation

ny
n2 6641400634154521
n3 5.4123954334489E+23
n4 4.4108202383348E+31
n5 3.5945886464002E+39

Nth Root

y√n
2√n 9027.4464274234
3√n 433.55408233283
4√n 95.012875061349
5√n 38.214305212082

Divisors of 81494789

1, 81494789

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81494790
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40747395
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9027.4464828101
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999754586
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81494789 can be divided by 2 positive divisors. The sum of these divisors (counting 81494789) is 81494790, the average is 40747395.

Base conversion 81494789

Base System Value
2 Binary 100110110111000001100000101
3 Ternary 12200100100211112
4 Quaternary 10312320030011
5 Quinary 131330313124
6 Senary 12030414405
8 Octal 466701405
10 Decimal 81494789
12 Duodecimal 23361405
16 Hexadecimal 4db8305
20 Vigesimal 1596gj9
36 Base36 1cips5

Cryptographic Hash Functions

md5 92d06445db4c108c3c64e29e4b098868
sha1 6d856e48161fa58cb4d526cf6adc94a09ed457f2
sha256 40fd76308a62edeeb8a18388485cd04b5bd950ceda895ffc270f86e75f89b158
sha512 8464cf7247b18e88a1a9dd11511bf474c79599fb0eb085df5b96699cf6add5829a6fee7375809b086c31b9178a71535d31af0967bf8be92e9a2adc29d907a2ae
ripemd-160 2e0965b639e04799c9a0cb66d3d89af6e44687f9

81494789 as geometric shapes

Circle

Radius = n
Diameter 162989578
Circumference 512046860.8565
Area 2.0864575441806E+16

Sphere

Radius = n
Volume 2.2671388976061E+24
Surface area 8.3458301767226E+16
Circumference 512046860.8565

Square

Length = n
Perimeter 325979156
Area 6641400634154521
Diagonal 115251035.86653

Cube

Length = n
Surface area 39848403804927126
Volume 5.4123954334489E+23
Space diagonal 141153115.10011

Equilateral Triangle

Length = n
Perimeter 244484367
Area 2.8758108329439E+15
Altitude 70576557.550053

Triangular Pyramid

Length = n
Surface area 2.8758108329439E+15
Volume 6.3785691890914E+22
Height 38417011.955511