81897435 (number)

81897435 is an odd 8-digits composite number following 81897434 and preceding 81897436. In scientific notation, it is written as 8.1897435 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 43061760 positive integers (up to 81897435) that are relatively prime to 81897435.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred ninety-seven thousand four hundred thirty-five

Notation

Scientific notation 8.1897435 × 10^7
Engineering notation 8.1897435 × 10^6

Prime Factorization of 81897435

Prime Factorization 9 × 5 × 71 × 25633

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81897435
Product of the distinct prime numbers

The prime factorization of 81897435 is 9 × 5 × 71 × 25633. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 66, 47, 980, 714, 2479, 676, 63028, 96445, 390895, 507303, 6307637, 4778102, 11407744, 40562288, 770692363, 42416774, 137424322, 6493918236

Basic calculations (n = 81897435)

Multiplication

n×y
n×2 163794870
n×3 245692305
n×4 327589740
n×5 409487175

Division

n÷y
n÷2 40948717.5
n÷3 27299145
n÷3 20474358.75
n÷5 16379487

Exponentiation

ny
n2 6707189859579225
n3 5.4930164555755E+23
n4 4.4986395812442E+31
n5 3.6842704269338E+39

Nth Root

y√n
2√n 9049.7201614194
3√n 434.2669381485
4√n 95.130017141906
5√n 38.251992328295

Divisors of 81897435

1, 5, 9, 45, 71, 355, 639, 3195, 25633, 128165, 230697, 1153485, 1819943, 9099715, 16379487, 81897435

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 -81897434
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 81897435 can be divided by 16 positive divisors. The sum of these divisors (counting 81897435) is 1, the average is 0.0625.

Base conversion 81897435

Base System Value
2 Binary 100111000011010011111011011
3 Ternary 12201002211011100
4 Quaternary 10320122133123
5 Quinary 131431204220
6 Senary 12043202443
8 Octal 470323733
10 Decimal 81897435
12 Duodecimal 23516423
16 Hexadecimal 4e1a7db
20 Vigesimal 15bh3bf
36 Base36 1crcgr

Cryptographic Hash Functions

md5 c0c790b1ff44c4aa582a25c5ff315630
sha1 1d82f3aa2e70471b6aad513243c8f3ecc5edec0a
sha256 e42f91d2684996479c42d5d29a165ef9b4d79917435ceed1c5afe9d157b8e91b
sha512 9032fea3fbd14ad01cec11d8ce89b44d6f528eda2309f4b66cf405781ed75c5e0067197363218a4b197bfac2206df5bb96cbeb34f4109ea89001cd601d221445
ripemd-160 28b4c753851a647a38dcaeb7eb2d3cd3915e0da1

81897435 as geometric shapes

Circle

Radius = n
Diameter 163794870
Circumference 514576760.2877
Area 2.1071258389086E+16

Sphere

Radius = n
Volume 2.3009093523845E+24
Surface area 8.4285033556344E+16
Circumference 514576760.2877

Square

Length = n
Perimeter 327589740
Area 6707189859579225
Diagonal 115820463.30057

Cube

Length = n
Surface area 40243139157475350
Volume 5.4930164555755E+23
Space diagonal 141850518.42957

Equilateral Triangle

Length = n
Perimeter 245692305
Area 2.9042984032005E+15
Altitude 70925259.214785

Triangular Pyramid

Length = n
Surface area 2.9042984032005E+15
Volume 6.4735819748445E+22
Height 38606821.10019