81245368 (number)

81245368 is an even 8-digits composite number following 81245367 and preceding 81245369. In scientific notation, it is written as 8.1245368 × 10^7. The sum of its digits is 37. It has a total of 6 prime factors and 32 positive divisors. There are 38354688 positive integers (up to 81245368) that are relatively prime to 81245368.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-five thousand three hundred sixty-eight

Notation

Scientific notation 8.1245368 × 10^7
Engineering notation 8.1245368 × 10^6

Prime Factorization of 81245368

Prime Factorization 2 × 2 × 2 × 19 × 373 × 1433

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20311342
Product of the distinct prime numbers

The prime factorization of 81245368 is 2 × 2 × 2 × 19 × 373 × 1433. Since it has a total of 6 prime factors.

Most popular turbo-numbers

10, 3, 20, 12, 593, 606, 9539, 7901, 86767, 35242, 549638, 112028, 9146269, 1560509, 38280179, 1139265, 465785187, 38956899, 5734788043, 5245051619

Basic calculations (n = 81245368)

Multiplication

n×y
n×2 162490736
n×3 243736104
n×4 324981472
n×5 406226840

Division

n÷y
n÷2 40622684
n÷3 27081789.333333
n÷3 20311342
n÷5 16249073.6

Exponentiation

ny
n2 6600809821455424
n3 5.3628522304216E+23
n4 4.3570690299022E+31
n5 3.5399167673581E+39

Nth Root

y√n
2√n 9013.621247867
3√n 433.11132190986
4√n 94.940092942166
5√n 38.190884965211

Divisors of 81245368

1, 2, 4, 8, 19, 38, 76, 152, 373, 746, 1433, 1492, 2866, 2984, 5732, 7087, 11464, 14174, 27227, 28348, 54454, 56696, 108908, 217816, 534509, 1069018, 2138036, 4276072, 10155671, 20311342, 40622684, 81245368

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 -81245367
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 81245368 can be divided by 32 positive divisors. The sum of these divisors (counting 81245368) is 1, the average is 0.03125.

Base conversion 81245368

Base System Value
2 Binary 100110101111011010010111000
3 Ternary 12122212200200201
4 Quaternary 10311323102320
5 Quinary 131244322433
6 Senary 12021211544
8 Octal 465732270
10 Decimal 81245368
12 Duodecimal 23260bb4
16 Hexadecimal 4d7b4b8
20 Vigesimal 157fd88
36 Base36 1cddbs

Cryptographic Hash Functions

md5 affd2a801d4cf34bb2170f595702a203
sha1 1601b5aa6ebb9f0d05e7dd6877f3dbb611f168d0
sha256 7e36fdbb84cbe78f22a631470851c0c1804f0b101d5482d2878f3c093b853cd1
sha512 8a33ac3a2ab284565af2cf204d9e781e922ec72e8f83a9705ad729bc6657b3e01265730ad687f435ce11b9085e75baa7967f347ffd03ce6c4e492d5e28298b9f
ripemd-160 f6b6140fd91fe3c3341015116bf5ec2778decc4d

81245368 as geometric shapes

Circle

Radius = n
Diameter 162490736
Circumference 510479702.494
Area 2.0737055642828E+16

Sphere

Radius = n
Volume 2.2463862892507E+24
Surface area 8.2948222571311E+16
Circumference 510479702.494

Square

Length = n
Perimeter 324981472
Area 6600809821455424
Diagonal 114898301.30559

Cube

Length = n
Surface area 39604858928732544
Volume 5.3628522304216E+23
Space diagonal 140721105.25563

Equilateral Triangle

Length = n
Perimeter 243736104
Area 2.8582344954651E+15
Altitude 70360552.627815

Triangular Pyramid

Length = n
Surface area 2.8582344954651E+15
Volume 6.3201819643875E+22
Height 38299433.768531