81245100 (number)

81245100 is an even 8-digits composite number following 81245099 and preceding 81245101. In scientific notation, it is written as 8.1245100 × 10^7. The sum of its digits is 21. It has a total of 6 prime factors and 48 positive divisors. There are 21454400 positive integers (up to 81245100) that are relatively prime to 81245100.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-five thousand one hundred

Notation

Scientific notation 8.1245100 × 10^7
Engineering notation 8.1245100 × 10^6

Prime Factorization of 81245100

Prime Factorization 2 × 2 × 3 × 25 × 107 × 2531

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40622550
Product of the distinct prime numbers

The prime factorization of 81245100 is 2 × 2 × 3 × 25 × 107 × 2531. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 6, 33, 43, 720, 67, 6811, 9104, 26148, 48168, 222319, 808169, 3940800, 3447806, 73505664, 31804442, 650222405, 320002804, 2695718926, 7108283753

Basic calculations (n = 81245100)

Multiplication

n×y
n×2 162490200
n×3 243735300
n×4 324980400
n×5 406225500

Division

n÷y
n÷2 40622550
n÷3 27081700
n÷3 20311275
n÷5 16249020

Exponentiation

ny
n2 6600766274010000
n3 5.3627991600857E+23
n4 4.3570115404108E+31
n5 3.5398583830183E+39

Nth Root

y√n
2√n 9013.6063814657
3√n 433.11084568184
4√n 94.940014648544
5√n 38.190859769508

Divisors of 81245100

1, 2, 3, 4, 6, 12, 25, 50, 75, 100, 107, 150, 214, 300, 321, 428, 642, 1284, 2531, 2675, 5062, 5350, 7593, 8025, 10124, 10700, 15186, 16050, 30372, 32100, 63275, 126550, 189825, 253100, 270817, 379650, 541634, 759300, 812451, 1083268, 1624902, 3249804, 6770425, 13540850, 20311275, 27081700, 40622550, 81245100

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81245099
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81245100 can be divided by 48 positive divisors. The sum of these divisors (counting 81245100) is 1, the average is 0.020833333333333.

Base conversion 81245100

Base System Value
2 Binary 100110101111011001110101100
3 Ternary 12122212200022210
4 Quaternary 10311323032230
5 Quinary 131244320400
6 Senary 12021210420
8 Octal 465731654
10 Decimal 81245100
12 Duodecimal 23260a10
16 Hexadecimal 4d7b3ac
20 Vigesimal 157fcf0
36 Base36 1cdd4c

Cryptographic Hash Functions

md5 f8eb99d2873e62513f98293b49631552
sha1 22f6963c1a657bcf55e9eb69d786c49506a98aee
sha256 1676e66eb58dad9f82389518672676b318555b0c70efa53bb68b4f683258eef9
sha512 ae3c8e558d5111a7d0c4828271241b727350fc221747a52f2d3d5a23d7ae599e7c2aacd80112ba5250e186fd2448871739006948c9f5a4342867fa30a46d60f7
ripemd-160 90c78ad274c39b7f6f9c43d6e8b68ef822e6ea15

81245100 as geometric shapes

Circle

Radius = n
Diameter 162490200
Circumference 510478018.60034
Area 2.0736918834493E+16

Sphere

Radius = n
Volume 2.2463640592004E+24
Surface area 8.2947675337972E+16
Circumference 510478018.60034

Square

Length = n
Perimeter 324980400
Area 6600766274010000
Diagonal 114897922.29636

Cube

Length = n
Surface area 39604597644060000
Volume 5.3627991600857E+23
Space diagonal 140720641.06601

Equilateral Triangle

Length = n
Perimeter 243735300
Area 2.8582156388681E+15
Altitude 70360320.533007

Triangular Pyramid

Length = n
Surface area 2.8582156388681E+15
Volume 6.3201194203969E+22
Height 38299307.432119