81393670 (number)

81393670 is an even 8-digits composite number following 81393669 and preceding 81393671. In scientific notation, it is written as 8.1393670 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 32221440 positive integers (up to 81393670) that are relatively prime to 81393670.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred ninety-three thousand six hundred seventy

Notation

Scientific notation 8.1393670 × 10^7
Engineering notation 8.1393670 × 10^6

Prime Factorization of 81393670

Prime Factorization 2 × 5 × 97 × 83911

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81393670
Product of the distinct prime numbers

The prime factorization of 81393670 is 2 × 5 × 97 × 83911. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 93, 51, 425, 894, 6352, 9756, 99887, 40135, 831542, 34689, 5847035, 2708422, 67490918, 91724903, 149923697, 114800275, 4717187676, 2595410688

Basic calculations (n = 81393670)

Multiplication

n×y
n×2 162787340
n×3 244181010
n×4 325574680
n×5 406968350

Division

n÷y
n÷2 40696835
n÷3 27131223.333333
n÷3 20348417.5
n÷5 16278734

Exponentiation

ny
n2 6624929516068900
n3 5.3922732680417E+23
n4 4.3889691092881E+31
n5 3.5723430332159E+39

Nth Root

y√n
2√n 9021.8440465351
3√n 433.37468967554
4√n 94.983388266239
5√n 38.204817214908

Divisors of 81393670

1, 2, 5, 10, 97, 194, 485, 970, 83911, 167822, 419555, 839110, 8139367, 16278734, 40696835, 81393670

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 -81393669
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 81393670 can be divided by 16 positive divisors. The sum of these divisors (counting 81393670) is 1, the average is 0.0625.

Base conversion 81393670

Base System Value
2 Binary 100110110011111100000000110
3 Ternary 12200011020010101
4 Quaternary 10312133200012
5 Quinary 131314044140
6 Senary 12024314314
8 Octal 466374006
10 Decimal 81393670
12 Duodecimal 2331299a
16 Hexadecimal 4d9f806
20 Vigesimal 158e43a
36 Base36 1cgjra

Cryptographic Hash Functions

md5 e40ad96ff492b872be3e01de607df8cf
sha1 59ebccbe73c2801e8de8ad84841aa841451e22b8
sha256 b857d06df00f3a727a309539cd73a288b21dda55150e8c98bd8d992262e783f9
sha512 df0424ab39b78f073ae3eedefd095e02b72f94532cf964200a6b3ed0805da679badd1959a4f036b39eb3c3804636e494968e3fda3c1ebce04a37497c8d22ef5f
ripemd-160 9ea00e316ef178126d91a74f164f70601ffd7ee6

81393670 as geometric shapes

Circle

Radius = n
Diameter 162787340
Circumference 511411511.44142
Area 2.0812829898232E+16

Sphere

Radius = n
Volume 2.2587101446705E+24
Surface area 8.3251319592929E+16
Circumference 511411511.44142

Square

Length = n
Perimeter 325574680
Area 6624929516068900
Diagonal 115108032.00532

Cube

Length = n
Surface area 39749577096413400
Volume 5.3922732680417E+23
Space diagonal 140977971.85449

Equilateral Triangle

Length = n
Perimeter 244181010
Area 2.8686786295985E+15
Altitude 70488985.927247

Triangular Pyramid

Length = n
Surface area 2.8686786295985E+15
Volume 6.3548549897387E+22
Height 38369344.001773