81279248 (number)

81279248 is an even 8-digits composite number following 81279247 and preceding 81279249. In scientific notation, it is written as 8.1279248 × 10^7. The sum of its digits is 41. It has a total of 6 prime factors and 20 positive divisors. There are 40427520 positive integers (up to 81279248) that are relatively prime to 81279248.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-nine thousand two hundred forty-eight

Notation

Scientific notation 8.1279248 × 10^7
Engineering notation 8.1279248 × 10^6

Prime Factorization of 81279248

Prime Factorization 2 × 2 × 2 × 2 × 193 × 26321

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10159906
Product of the distinct prime numbers

The prime factorization of 81279248 is 2 × 2 × 2 × 2 × 193 × 26321. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 6, 67, 40, 349, 480, 4630, 4991, 84314, 43723, 639568, 122634, 6068445, 2483813, 92702427, 65750572, 524518039, 142712375, 92192266, 6675187368

Basic calculations (n = 81279248)

Multiplication

n×y
n×2 162558496
n×3 243837744
n×4 325116992
n×5 406396240

Division

n÷y
n÷2 40639624
n÷3 27093082.666667
n÷3 20319812
n÷5 16255849.6

Exponentiation

ny
n2 6606316155445504
n3 5.3695640916486E+23
n4 4.36434131457E+31
n5 3.5473038006358E+39

Nth Root

y√n
2√n 9015.5004298153
3√n 433.17151722815
4√n 94.949989098553
5√n 38.194069617925

Divisors of 81279248

1, 2, 4, 8, 16, 193, 386, 772, 1544, 3088, 26321, 52642, 105284, 210568, 421136, 5079953, 10159906, 20319812, 40639624, 81279248

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81279247
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81279248 can be divided by 20 positive divisors. The sum of these divisors (counting 81279248) is 1, the average is 0.05.

Base conversion 81279248

Base System Value
2 Binary 100110110000011100100010000
3 Ternary 12122221102011112
4 Quaternary 10312003210100
5 Quinary 131301413443
6 Senary 12022032452
8 Octal 466034420
10 Decimal 81279248
12 Duodecimal 23278728
16 Hexadecimal 4d83910
20 Vigesimal 157ji28
36 Base36 1ce3gw

Cryptographic Hash Functions

md5 e547b3413c4837a0166ad3b5caa8eb1c
sha1 bd76ab1c000a44c4389181fa8a678caab36b6eb2
sha256 7e96e99cf8481cb782aecbe1db9fd4b299c5f16e34537e64168587bb7664957c
sha512 dfbb0c03063b1c0f7bbf21acf760641520a3aa3332935be2566c11391601356206ce85be5359820d0683068048771a0b0f1130f2dc06fa6a0bca73ab3bc4254e
ripemd-160 a1c508b364efc15935810d5876f72c1eb1b5810d

81279248 as geometric shapes

Circle

Radius = n
Diameter 162558496
Circumference 510692576.81221
Area 2.0754354301239E+16

Sphere

Radius = n
Volume 2.249197747107E+24
Surface area 8.3017417204957E+16
Circumference 510692576.81221

Square

Length = n
Perimeter 325116992
Area 6606316155445504
Diagonal 114946214.86109

Cube

Length = n
Surface area 39637896932673024
Volume 5.3695640916486E+23
Space diagonal 140779787.13699

Equilateral Triangle

Length = n
Perimeter 243837744
Area 2.8606188080237E+15
Altitude 70389893.568496

Triangular Pyramid

Length = n
Surface area 2.8606188080237E+15
Volume 6.3280919687009E+22
Height 38315404.953695