81489086 (number)

81489086 is an even 8-digits composite number following 81489085 and preceding 81489087. In scientific notation, it is written as 8.1489086 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 34878816 positive integers (up to 81489086) that are relatively prime to 81489086.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1489086 × 10^7
Engineering notation 8.1489086 × 10^6

Prime Factorization of 81489086

Prime Factorization 2 × 7 × 877 × 6637

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81489086
Product of the distinct prime numbers

The prime factorization of 81489086 is 2 × 7 × 877 × 6637. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 70, 65, 586, 716, 4300, 5491, 52828, 53038, 696650, 180016, 9434234, 2543069, 80571591, 60307389, 120094378, 911841606, 8651184517, 137062127

Basic calculations (n = 81489086)

Multiplication

n×y
n×2 162978172
n×3 244467258
n×4 325956344
n×5 407445430

Division

n÷y
n÷2 40744543
n÷3 27163028.666667
n÷3 20372271.5
n÷5 16297817.2

Exponentiation

ny
n2 6640471137115396
n3 5.4112592357291E+23
n4 4.4095856922863E+31
n5 3.5933310770308E+39

Nth Root

y√n
2√n 9027.130551842
3√n 433.54396873481
4√n 95.011212769031
5√n 38.213770350194

Divisors of 81489086

1, 2, 7, 14, 877, 1754, 6139, 6637, 12278, 13274, 46459, 92918, 5820649, 11641298, 40744543, 81489086

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 -81489085
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 81489086 can be divided by 16 positive divisors. The sum of these divisors (counting 81489086) is 1, the average is 0.0625.

Base conversion 81489086

Base System Value
2 Binary 100110110110110110010111110
3 Ternary 12200100002000022
4 Quaternary 10312312302332
5 Quinary 131330122321
6 Senary 12030332142
8 Octal 466666276
10 Decimal 81489086
12 Duodecimal 2335a052
16 Hexadecimal 4db6cbe
20 Vigesimal 15962e6
36 Base36 1cildq

Cryptographic Hash Functions

md5 8d4f07a0198cbf15a75d2a00cf4a3f88
sha1 e5ee1515990d2d7dec6bd6ff85b77f2a9679ff97
sha256 1a4ae8396e5a3c4b7c5b9b8e9ee6944488de125360c3781113a3909e8d8f2909
sha512 9d584acc2346271b49243c08246288150af83fe7b713beb3a1010c27935e71e3c1049a5de16f8d6ef7a6866e271a289eae1c3a4e5e59cabb1724295ad1b35de0
ripemd-160 b94af229e0fa6b9bf9b030d18e74d78bd88085f7

81489086 as geometric shapes

Circle

Radius = n
Diameter 162978172
Circumference 512011027.85069
Area 2.0861655340737E+16

Sphere

Radius = n
Volume 2.2666629682182E+24
Surface area 8.3446621362947E+16
Circumference 512011027.85069

Square

Length = n
Perimeter 325956344
Area 6640471137115396
Diagonal 115242970.60659

Cube

Length = n
Surface area 39842826822692376
Volume 5.4112592357291E+23
Space diagonal 141143237.21435

Equilateral Triangle

Length = n
Perimeter 244467258
Area 2.8754083489196E+15
Altitude 70571618.607175

Triangular Pyramid

Length = n
Surface area 2.8754083489196E+15
Volume 6.3772301672374E+22
Height 38414323.535529