81104989 (number)

81104989 is an odd 8-digits composite number following 81104988 and preceding 81104990. In scientific notation, it is written as 8.1104989 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 69518556 positive integers (up to 81104989) that are relatively prime to 81104989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1104989 × 10^7
Engineering notation 8.1104989 × 10^6

Prime Factorization of 81104989

Prime Factorization 7 × 11586427

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81104989
Product of the distinct prime numbers

The prime factorization of 81104989 is 7 × 11586427. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81104989)

Multiplication

n×y
n×2 162209978
n×3 243314967
n×4 324419956
n×5 405524945

Division

n÷y
n÷2 40552494.5
n÷3 27034996.333333
n÷3 20276247.25
n÷5 16220997.8

Exponentiation

ny
n2 6578019240690121
n3 5.3351017815796E+23
n4 4.3270337130889E+31
n5 3.5094402170271E+39

Nth Root

y√n
2√n 9005.8308334101
3√n 432.86172907434
4√n 94.899056019594
5√n 38.177678286392

Divisors of 81104989

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81104988
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81104989 can be divided by 4 positive divisors. The sum of these divisors (counting 81104989) is 1, the average is 0.25.

Base conversion 81104989

Base System Value
2 Binary 100110101011001000001011101
3 Ternary 12122121120010111
4 Quaternary 10311121001131
5 Quinary 131230324424
6 Senary 12014210021
8 Octal 465310135
10 Decimal 81104989
12 Duodecimal 231b3911
16 Hexadecimal 4d5905d
20 Vigesimal 156i299
36 Base36 1cad0d

Cryptographic Hash Functions

md5 3b1c34adbd0192c4ef14c26a2d4cacfe
sha1 a642b07dd60539117261f5fa637851479a81e585
sha256 ce3a7f87ecd904c0e01177887ca99396527fd01398a113447394b94a6765bd34
sha512 6d64c09cf4d0b03b4b2b8d69c1396317da45c780d3ebfe5316acb31b774c3a6b4c4e6faceb9448a0a02943438df335ce8df5ee4e8235164d006c0af02964a3de
ripemd-160 b33edb98dfe371b3d9c0242b32805d7fe9eedb19

81104989 as geometric shapes

Circle

Radius = n
Diameter 162209978
Circumference 509597675.22376
Area 2.0665456921724E+16

Sphere

Radius = n
Volume 2.2347622084219E+24
Surface area 8.2661827686898E+16
Circumference 509597675.22376

Square

Length = n
Perimeter 324419956
Area 6578019240690121
Diagonal 114699775.41992

Cube

Length = n
Surface area 39468115444140726
Volume 5.3351017815796E+23
Space diagonal 140477961.69531

Equilateral Triangle

Length = n
Perimeter 243314967
Area 2.8483658845102E+15
Altitude 70238980.847657

Triangular Pyramid

Length = n
Surface area 2.8483658845102E+15
Volume 6.2874777467923E+22
Height 38233258.473307