81129625 (number)

81129625 is an odd 8-digits composite number following 81129624 and preceding 81129626. In scientific notation, it is written as 8.1129625 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 62079600 positive integers (up to 81129625) that are relatively prime to 81129625.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-nine thousand six hundred twenty-five

Notation

Scientific notation 8.1129625 × 10^7
Engineering notation 8.1129625 × 10^6

Prime Factorization of 81129625

Prime Factorization 5 × 25 × 23 × 28219

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81129625
Product of the distinct prime numbers

The prime factorization of 81129625 is 5 × 25 × 23 × 28219. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 31, 80, 622, 658, 3479, 544, 60917, 36954, 129871, 124292, 6569893, 7285285, 92917969, 61589707, 517549578, 518603652, 1048626430, 1439955897

Basic calculations (n = 81129625)

Multiplication

n×y
n×2 162259250
n×3 243388875
n×4 324518500
n×5 405648125

Division

n÷y
n÷2 40564812.5
n÷3 27043208.333333
n÷3 20282406.25
n÷5 16225925

Exponentiation

ny
n2 6582016052640625
n3 5.3399649409471E+23
n4 4.3322935317219E+31
n5 3.5147734961852E+39

Nth Root

y√n
2√n 9007.1985100807
3√n 432.90555252724
4√n 94.906261701116
5√n 38.17999733245

Divisors of 81129625

1, 5, 23, 25, 115, 125, 575, 2875, 28219, 141095, 649037, 705475, 3245185, 3527375, 16225925, 81129625

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 -81129624
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 81129625 can be divided by 16 positive divisors. The sum of these divisors (counting 81129625) is 1, the average is 0.0625.

Base conversion 81129625

Base System Value
2 Binary 100110101011111000010011001
3 Ternary 12122122210220221
4 Quaternary 10311133002121
5 Quinary 131232122000
6 Senary 12014520041
8 Octal 465370231
10 Decimal 81129625
12 Duodecimal 23206021
16 Hexadecimal 4d5f099
20 Vigesimal 1571415
36 Base36 1caw0p

Cryptographic Hash Functions

md5 2c4be5383af8b180d97ead045aa2ef18
sha1 8a119fa2aeacdcd6a471541b09d3a116427cbdf7
sha256 68f509559c0744cbfe2adb3a171198d43fb7b70404b7e95cfe69b065c2ede9a4
sha512 bb948e52341c8410b2ce6392a35bc44b988064ecf693cfb21180ecca8d6d488e1cdd103da8340a9205a147878f1fb6c749e14b87ce994a8b5c70c012a5f4458e
ripemd-160 5f2d3782d9caf776a009edb9aaba019d93686d5b

81129625 as geometric shapes

Circle

Radius = n
Diameter 162259250
Circumference 509752467.77699
Area 2.0678013276786E+16

Sphere

Radius = n
Volume 2.2367992838542E+24
Surface area 8.2712053107144E+16
Circumference 509752467.77699

Square

Length = n
Perimeter 324518500
Area 6582016052640625
Diagonal 114734615.98524

Cube

Length = n
Surface area 39492096315843750
Volume 5.3399649409471E+23
Space diagonal 140520632.49901

Equilateral Triangle

Length = n
Perimeter 243388875
Area 2.8500965548519E+15
Altitude 70260316.249505

Triangular Pyramid

Length = n
Surface area 2.8500965548519E+15
Volume 6.2932090350702E+22
Height 38244871.995081