81371946 (number)

81371946 is an even 8-digits composite number following 81371945 and preceding 81371947. In scientific notation, it is written as 8.1371946 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 25148016 positive integers (up to 81371946) that are relatively prime to 81371946.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred seventy-one thousand nine hundred forty-six

Notation

Scientific notation 8.1371946 × 10^7
Engineering notation 8.1371946 × 10^6

Prime Factorization of 81371946

Prime Factorization 2 × 3 × 19 × 47 × 15187

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81371946
Product of the distinct prime numbers

The prime factorization of 81371946 is 2 × 3 × 19 × 47 × 15187. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 5, 60, 38, 489, 143, 4700, 8169, 79277, 59027, 49456, 403082, 9042845, 6118188, 19018876, 11279519, 3198378, 706490923, 7838795927, 3168348490

Basic calculations (n = 81371946)

Multiplication

n×y
n×2 162743892
n×3 244115838
n×4 325487784
n×5 406859730

Division

n÷y
n÷2 40685973
n÷3 27123982
n÷3 20342986.5
n÷5 16274389.2

Exponentiation

ny
n2 6621393595826916
n3 5.3879568212437E+23
n4 4.3842853150858E+31
n5 3.5675782790775E+39

Nth Root

y√n
2√n 9020.6399994679
3√n 433.33613029095
4√n 94.977049856625
5√n 38.202777621239

Divisors of 81371946

1, 2, 3, 6, 19, 38, 47, 57, 94, 114, 141, 282, 893, 1786, 2679, 5358, 15187, 30374, 45561, 91122, 288553, 577106, 713789, 865659, 1427578, 1731318, 2141367, 4282734, 13561991, 27123982, 40685973, 81371946

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81371945
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81371946 can be divided by 32 positive divisors. The sum of these divisors (counting 81371946) is 1, the average is 0.03125.

Base conversion 81371946

Base System Value
2 Binary 100110110011010001100101010
3 Ternary 12200010010022210
4 Quaternary 10312122030222
5 Quinary 131312400241
6 Senary 12024025550
8 Octal 466321452
10 Decimal 81371946
12 Duodecimal 233022b6
16 Hexadecimal 4d9a32a
20 Vigesimal 158b9h6
36 Base36 1cg2zu

Cryptographic Hash Functions

md5 c06d6df26ec4fd51814246701bb3b0a5
sha1 507120fae9eeb489d51134423418fb77d9720087
sha256 79f0afc2ea04d68d818c8bd7a006efc695d18034521ca9218c825bcb0aff1673
sha512 83f4de8418aabc6a42c953442dcf82b891a9c258470cf7f72921fd806179e1d8c5aed851a1331b5aae6a381528232687120ab2dca2d135e7b1d9056764c47b06
ripemd-160 b0b3c9c72dd1f1299daabcea88c6d6d72557346b

81371946 as geometric shapes

Circle

Radius = n
Diameter 162743892
Circumference 511275015.52381
Area 2.0801721477176E+16

Sphere

Radius = n
Volume 2.2569020756638E+24
Surface area 8.3206885908705E+16
Circumference 511275015.52381

Square

Length = n
Perimeter 325487784
Area 6621393595826916
Diagonal 115077309.62989

Cube

Length = n
Surface area 39728361574961496
Volume 5.3879568212437E+23
Space diagonal 140940344.78275

Equilateral Triangle

Length = n
Perimeter 244115838
Area 2.8671475312209E+15
Altitude 70470172.391376

Triangular Pyramid

Length = n
Surface area 2.8671475312209E+15
Volume 6.3497680084029E+22
Height 38359103.209964