81371719 (number)

81371719 is an odd 8-digits composite number following 81371718 and preceding 81371720. In scientific notation, it is written as 8.1371719 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 67845600 positive integers (up to 81371719) that are relatively prime to 81371719.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seventy-one thousand seven hundred nineteen

Notation

Scientific notation 8.1371719 × 10^7
Engineering notation 8.1371719 × 10^6

Prime Factorization of 81371719

Prime Factorization 11 × 13 × 163 × 3491

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81371719
Product of the distinct prime numbers

The prime factorization of 81371719 is 11 × 13 × 163 × 3491. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 80, 44, 760, 162, 4117, 8803, 96218, 74734, 77479, 657259, 7715153, 6880472, 19378460, 67068717, 780101562, 633099799, 1884148354, 4151096476

Basic calculations (n = 81371719)

Multiplication

n×y
n×2 162743438
n×3 244115157
n×4 325486876
n×5 406858595

Division

n÷y
n÷2 40685859.5
n÷3 27123906.333333
n÷3 20342929.75
n÷5 16274343.8

Exponentiation

ny
n2 6621356653014961
n3 5.3879117296791E+23
n4 4.3842363926425E+31
n5 3.5675285177168E+39

Nth Root

y√n
2√n 9020.6274172033
3√n 433.3357273372
4√n 94.976983618155
5√n 38.202756306669

Divisors of 81371719

1, 11, 13, 143, 163, 1793, 2119, 3491, 23309, 38401, 45383, 499213, 569033, 6259363, 7397429, 81371719

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 -81371718
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 81371719 can be divided by 16 positive divisors. The sum of these divisors (counting 81371719) is 1, the average is 0.0625.

Base conversion 81371719

Base System Value
2 Binary 100110110011010001001000111
3 Ternary 12200010010000101
4 Quaternary 10312122021013
5 Quinary 131312343334
6 Senary 12024024531
8 Octal 466321107
10 Decimal 81371719
12 Duodecimal 23302147
16 Hexadecimal 4d9a247
20 Vigesimal 158b95j
36 Base36 1cg2tj

Cryptographic Hash Functions

md5 d3bdb51536c4df492d3c35a9f65789b6
sha1 2ce5ae04106331d638bd87756b04f14e88b15f86
sha256 5818c622d07ff05c74b122cbcb6d858ac4151c073e1baf99d3e3865a12b65380
sha512 d2b9ccec1eddb0b8fdfedac20dd77fd437968512e76b0babfecef80c47350e987569e56c28e70c7441ea5949f999a4eafc1523b9b70830455f69e5dbb07ff428
ripemd-160 4e217051327b6bb1848177198b7cac17a5f2be6d

81371719 as geometric shapes

Circle

Radius = n
Diameter 162743438
Circumference 511273589.24075
Area 2.080160541791E+16

Sphere

Radius = n
Volume 2.2568831877534E+24
Surface area 8.3206421671639E+16
Circumference 511273589.24075

Square

Length = n
Perimeter 325486876
Area 6621356653014961
Diagonal 115076988.60341

Cube

Length = n
Surface area 39728139918089766
Volume 5.3879117296791E+23
Space diagonal 140939951.60722

Equilateral Triangle

Length = n
Perimeter 244115157
Area 2.867131534514E+15
Altitude 70469975.803609

Triangular Pyramid

Length = n
Surface area 2.867131534514E+15
Volume 6.3497148674844E+22
Height 38358996.201137