81123973 (number)

81123973 is an odd 8-digits composite number following 81123972 and preceding 81123974. In scientific notation, it is written as 8.1123973 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 67931136 positive integers (up to 81123973) that are relatively prime to 81123973.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-three thousand nine hundred seventy-three

Notation

Scientific notation 8.1123973 × 10^7
Engineering notation 8.1123973 × 10^6

Prime Factorization of 81123973

Prime Factorization 7 × 53 × 449 × 487

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81123973
Product of the distinct prime numbers

The prime factorization of 81123973 is 7 × 53 × 449 × 487. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 39, 87, 761, 959, 9003, 8864, 79365, 28343, 601730, 492399, 1995936, 1436792, 81076641, 36256747, 884185312, 288838491, 6967979376, 6974130691

Basic calculations (n = 81123973)

Multiplication

n×y
n×2 162247946
n×3 243371919
n×4 324495892
n×5 405619865

Division

n÷y
n÷2 40561986.5
n÷3 27041324.333333
n÷3 20280993.25
n÷5 16224794.6

Exponentiation

ny
n2 6581098995304729
n3 5.3388489720543E+23
n4 4.3310863986001E+31
n5 3.513549360607E+39

Nth Root

y√n
2√n 9006.8847555634
3√n 432.89549931916
4√n 94.904608716139
5√n 38.17946534587

Divisors of 81123973

1, 7, 53, 371, 449, 487, 3143, 3409, 23797, 25811, 166579, 180677, 218663, 1530641, 11589139, 81123973

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 -81123972
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 81123973 can be divided by 16 positive divisors. The sum of these divisors (counting 81123973) is 1, the average is 0.0625.

Base conversion 81123973

Base System Value
2 Binary 100110101011101101010000101
3 Ternary 12122122112011121
4 Quaternary 10311131222011
5 Quinary 131231431343
6 Senary 12014433541
8 Octal 465355205
10 Decimal 81123973
12 Duodecimal 232028b1
16 Hexadecimal 4d5da85
20 Vigesimal 15709id
36 Base36 1carnp

Cryptographic Hash Functions

md5 c0ffe67904c7b55be2de7aae9eba1362
sha1 46536ced9a56ddfc5654e7cd897d0dafa2175a9a
sha256 c63fd4a7de55774f0cfd577f2d0e43e95387c26d20495cf617fac42034b9197b
sha512 f2d42ab15f469d857662f826b761f6452400b8750a0b57757d4184a597b6d4bbea85605f739ec8cf025d0f3903984a7754fd9a2e6d49527776299064dc0a7abd
ripemd-160 0580434d8fe63d8744dc45785e8dbb705291b24b

81123973 as geometric shapes

Circle

Radius = n
Diameter 162247946
Circumference 509716955.21363
Area 2.0675132256197E+16

Sphere

Radius = n
Volume 2.2363318278975E+24
Surface area 8.2700529024786E+16
Circumference 509716955.21363

Square

Length = n
Perimeter 324495892
Area 6581098995304729
Diagonal 114726622.85019

Cube

Length = n
Surface area 39486593971828374
Volume 5.3388489720543E+23
Space diagonal 140510842.94785

Equilateral Triangle

Length = n
Perimeter 243371919
Area 2.8496994573771E+15
Altitude 70255421.473923

Triangular Pyramid

Length = n
Surface area 2.8496994573771E+15
Volume 6.2918938531174E+22
Height 38242207.61673