81127838 (number)

81127838 is an even 8-digits composite number following 81127837 and preceding 81127839. In scientific notation, it is written as 8.1127838 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 36592160 positive integers (up to 81127838) that are relatively prime to 81127838.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-seven thousand eight hundred thirty-eight

Notation

Scientific notation 8.1127838 × 10^7
Engineering notation 8.1127838 × 10^6

Prime Factorization of 81127838

Prime Factorization 2 × 121 × 137 × 2447

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81127838
Product of the distinct prime numbers

The prime factorization of 81127838 is 2 × 121 × 137 × 2447. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 8, 26, 72, 453, 440, 803, 8898, 86375, 33664, 140832, 983608, 7207989, 6727330, 2980178, 53058050, 907228938, 698508655, 2124384531, 2481700110

Basic calculations (n = 81127838)

Multiplication

n×y
n×2 162255676
n×3 243383514
n×4 324511352
n×5 405639190

Division

n÷y
n÷2 40563919
n÷3 27042612.666667
n÷3 20281959.5
n÷5 16225567.6

Exponentiation

ny
n2 6581726098554244
n3 5.3396120868388E+23
n4 4.331911843639E+31
n5 3.5143864228103E+39

Nth Root

y√n
2√n 9007.099311099
3√n 432.90237404218
4√n 94.905739084099
5√n 38.179829136784

Divisors of 81127838

1, 2, 121, 137, 242, 274, 2447, 4894, 16577, 33154, 296087, 335239, 592174, 670478, 40563919, 81127838

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 -81127837
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 81127838 can be divided by 16 positive divisors. The sum of these divisors (counting 81127838) is 1, the average is 0.0625.

Base conversion 81127838

Base System Value
2 Binary 100110101011110100110011110
3 Ternary 12122122201110202
4 Quaternary 10311132212132
5 Quinary 131232042323
6 Senary 12014503502
8 Octal 465364636
10 Decimal 81127838
12 Duodecimal 23204b92
16 Hexadecimal 4d5e99e
20 Vigesimal 1570jbi
36 Base36 1caun2

Cryptographic Hash Functions

md5 fc370e3a8bcaffb332f5989ab4fe3c85
sha1 7ffc0cd9d83072cd72ffad647ba8fcb9377e9a96
sha256 9c5bebaddaa77effd43d5225e6935b7b375f1a1fb5aa612cccd8964ec50e95e8
sha512 e2ba47b92798f886247066496225c1fb1379fc3cdf029ac1e86d7ade5efea1edb4563ab8a1018524774149e9c7b6b9a93fb3eace306ba0db0aa67d4872d00e43
ripemd-160 a09eb50c8c8ae4f0470140e9a60b7f5dc02d301c

81127838 as geometric shapes

Circle

Radius = n
Diameter 162255676
Circumference 509741239.72485
Area 2.0677102359158E+16

Sphere

Radius = n
Volume 2.2366514806709E+24
Surface area 8.2708409436633E+16
Circumference 509741239.72485

Square

Length = n
Perimeter 324511352
Area 6581726098554244
Diagonal 114732088.78561

Cube

Length = n
Surface area 39490356591325464
Volume 5.3396120868388E+23
Space diagonal 140517537.32422

Equilateral Triangle

Length = n
Perimeter 243383514
Area 2.8499710010495E+15
Altitude 70258768.662109

Triangular Pyramid

Length = n
Surface area 2.8499710010495E+15
Volume 6.2927931925156E+22
Height 38244029.595202