81489401 (number)

81489401 is an odd 8-digits composite number following 81489400 and preceding 81489402. In scientific notation, it is written as 8.1489401 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 69437088 positive integers (up to 81489401) that are relatively prime to 81489401.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1489401 × 10^7
Engineering notation 8.1489401 × 10^6

Prime Factorization of 81489401

Prime Factorization 7 × 7 × 173 × 9613

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 11641343
Product of the distinct prime numbers

The prime factorization of 81489401 is 7 × 7 × 173 × 9613. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 2, 77, 18, 548, 659, 8840, 1796, 87619, 64294, 836238, 182773, 1917094, 370979, 93490003, 91765826, 176940342, 473211951, 2438887498, 9679411830

Basic calculations (n = 81489401)

Multiplication

n×y
n×2 162978802
n×3 244468203
n×4 325957604
n×5 407447005

Division

n÷y
n÷2 40744700.5
n÷3 27163133.666667
n÷3 20372350.25
n÷5 16297880.2

Exponentiation

ny
n2 6640522475338801
n3 5.411321988424E+23
n4 4.409653874548E+31
n5 3.5934005285424E+39

Nth Root

y√n
2√n 9027.1479992299
3√n 433.54452736247
4√n 95.011304586506
5√n 38.213799893584

Divisors of 81489401

1, 7, 49, 173, 1211, 8477, 9613, 67291, 471037, 1663049, 11641343, 81489401

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489400
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489401 can be divided by 12 positive divisors. The sum of these divisors (counting 81489401) is 1, the average is 0.083333333333333.

Base conversion 81489401

Base System Value
2 Binary 100110110110110110111111001
3 Ternary 12200100002102222
4 Quaternary 10312312313321
5 Quinary 131330130101
6 Senary 12030333425
8 Octal 466666771
10 Decimal 81489401
12 Duodecimal 2335a275
16 Hexadecimal 4db6df9
20 Vigesimal 15963a1
36 Base36 1cilmh

Cryptographic Hash Functions

md5 3d9f0b04c0abf333f5781efd74f2ccbb
sha1 de223cb9528cd7eef5fb8906de6424ce2a121da0
sha256 423e813d73e8e39eb7b3041f722cb60cac92d735d66a9593be4ce9623e8ca04e
sha512 cfb9021a927e27a89c24e17f3ce1826c54a97cf9deb926252fb0893a1e276479d0d44a7a2b1a9100298a4c91b49603520dab1dcd2866dd09e8034f44af03e24d
ripemd-160 fe0e8fed6cf3f904afe4f4ecc473fddcd227baf6

81489401 as geometric shapes

Circle

Radius = n
Diameter 162978802
Circumference 512013007.05407
Area 2.0861816624522E+16

Sphere

Radius = n
Volume 2.2666892540056E+24
Surface area 8.3447266498089E+16
Circumference 512013007.05407

Square

Length = n
Perimeter 325957604
Area 6640522475338801
Diagonal 115243416.08386

Cube

Length = n
Surface area 39843134852032806
Volume 5.411321988424E+23
Space diagonal 141143782.81035

Equilateral Triangle

Length = n
Perimeter 244468203
Area 2.8754305790225E+15
Altitude 70571891.405177

Triangular Pyramid

Length = n
Surface area 2.8754305790225E+15
Volume 6.3773041219974E+22
Height 38414472.027953