81265824 (number)

81265824 is an even 8-digits composite number following 81265823 and preceding 81265825. In scientific notation, it is written as 8.1265824 × 10^7. The sum of its digits is 36. It has a total of 9 prime factors and 72 positive divisors. There are 26800128 positive integers (up to 81265824) that are relatively prime to 81265824.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred sixty-five thousand eight hundred twenty-four

Notation

Scientific notation 8.1265824 × 10^7
Engineering notation 8.1265824 × 10^6

Prime Factorization of 81265824

Prime Factorization 2 × 2 × 2 × 2 × 2 × 3 × 3 × 97 × 2909

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 1693038
Product of the distinct prime numbers

The prime factorization of 81265824 is 2 × 2 × 2 × 2 × 2 × 3 × 3 × 97 × 2909. Since it has a total of 9 prime factors.

Most popular turbo-numbers

6, 5, 60, 81, 644, 392, 6197, 2721, 85611, 42450, 428197, 380664, 7370139, 3112102, 7273520, 96520203, 841550819, 996076130, 1672886120, 9860578811

Basic calculations (n = 81265824)

Multiplication

n×y
n×2 162531648
n×3 243797472
n×4 325063296
n×5 406329120

Division

n÷y
n÷2 40632912
n÷3 27088608
n÷3 20316456
n÷5 16253164.8

Exponentiation

ny
n2 6604134150398976
n3 5.3669040353871E+23
n4 4.3614587876466E+31
n5 3.5443754222014E+39

Nth Root

y√n
2√n 9014.7559035173
3√n 433.14766852241
4√n 94.946068394206
5√n 38.192807915637

Divisors of 81265824

1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 97, 144, 194, 288, 291, 388, 582, 776, 873, 1164, 1552, 1746, 2328, 2909, 3104, 3492, 4656, 5818, 6984, 8727, 9312, 11636, 13968, 17454, 23272, 26181, 27936, 34908, 46544, 52362, 69816, 93088, 104724, 139632, 209448, 279264, 282173, 418896, 564346, 837792, 846519, 1128692, 1693038, 2257384, 2539557, 3386076, 4514768, 5079114, 6772152, 9029536, 10158228, 13544304, 20316456, 27088608, 40632912, 81265824

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81265823
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81265824 can be divided by 72 positive divisors. The sum of these divisors (counting 81265824) is 1, the average is 0.013888888888889.

Base conversion 81265824

Base System Value
2 Binary 100110110000000010010100000
3 Ternary 12122220201202100
4 Quaternary 10312000102200
5 Quinary 131301001244
6 Senary 12021450400
8 Octal 466002240
10 Decimal 81265824
12 Duodecimal 23270a00
16 Hexadecimal 4d804a0
20 Vigesimal 157i4b4
36 Base36 1cdt40

Cryptographic Hash Functions

md5 a5d1f9b5da4d3882fed69ddc14810c81
sha1 460eccea12bbd85e40540e8528a3ec501b760e17
sha256 aad540f6a7a5e6d5e8bf5d56dd1f8038d3959f2d6cb08620f715ace27cfd48c4
sha512 c0e0bac5b8d40cbe41db85b1ff23b71e738cf81caa24367dea60ff1608e28bc08077dd89e656f9ef1aa5c78b28cfe27b56edaf90b101d4e45cf01a14832b7b96
ripemd-160 d92297b9072905f418499c9a93bd9200b059dfdd

81265824 as geometric shapes

Circle

Radius = n
Diameter 162531648
Circumference 510608231.33264
Area 2.0747499330215E+16

Sphere

Radius = n
Volume 2.2480835053458E+24
Surface area 8.298999732086E+16
Circumference 510608231.33264

Square

Length = n
Perimeter 325063296
Area 6604134150398976
Diagonal 114927230.45822

Cube

Length = n
Surface area 39624804902393856
Volume 5.3669040353871E+23
Space diagonal 140756536.08695

Equilateral Triangle

Length = n
Perimeter 243797472
Area 2.8596739721229E+15
Altitude 70378268.043475

Triangular Pyramid

Length = n
Surface area 2.8596739721229E+15
Volume 6.3249570623328E+22
Height 38309076.819408