81620123 (number)

81620123 is an odd 8-digits composite number following 81620122 and preceding 81620124. In scientific notation, it is written as 8.1620123 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 69573504 positive integers (up to 81620123) that are relatively prime to 81620123.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred twenty thousand one hundred twenty-three

Notation

Scientific notation 8.1620123 × 10^7
Engineering notation 8.1620123 × 10^6

Prime Factorization of 81620123

Prime Factorization 29 × 23 × 13 × 9413

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81620123
Product of the distinct prime numbers

The prime factorization of 81620123 is 29 × 23 × 13 × 9413. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81620123)

Multiplication

n×y
n×2 163240246
n×3 244860369
n×4 326480492
n×5 408100615

Division

n÷y
n÷2 40810061.5
n÷3 27206707.666667
n÷3 20405030.75
n÷5 16324024.6

Exponentiation

ny
n2 6661844478535129
n3 5.4374056574491E+23
n4 4.4380171856189E+31
n5 3.6223150856633E+39

Nth Root

y√n
2√n 9034.3855906199
3√n 433.77622837463
4√n 95.049385009162
5√n 38.226052240546

Divisors of 81620123

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 -81620122
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 81620123 can be divided by 16 positive divisors. The sum of these divisors (counting 81620123) is 1, the average is 0.0625.

Base conversion 81620123

Base System Value
2 Binary 100110111010110110010011011
3 Ternary 12200120201202112
4 Quaternary 10313112302123
5 Quinary 131343320443
6 Senary 12033222535
8 Octal 467266233
10 Decimal 81620123
12 Duodecimal 23401a4b
16 Hexadecimal 4dd6c9b
20 Vigesimal 15a2a63
36 Base36 1clehn

Cryptographic Hash Functions

md5 f6960139f4126f1d2977e30c5d037482
sha1 19cfd777a0a8c128dd6888dcb5e480bc538124c4
sha256 35cde5351a929bb77a8cd984a911909dfe85bfbf6864acdbbbeea23c8acfb2b2
sha512 c1dc6f393d1a15be1b934fd0d9a0430b8b6a041fc0b723e66f759cc8ed7f7ca381eddd4ecf15299c2772c429626f318a447523eb084c76e82505cdab95a10fa5
ripemd-160 de41b4d604c1a75b6b7eef7dc9c0434b433d637a

81620123 as geometric shapes

Circle

Radius = n
Diameter 163240246
Circumference 512834357.60379
Area 2.0928801673124E+16

Sphere

Radius = n
Volume 2.2776151557373E+24
Surface area 8.3715206692495E+16
Circumference 512834357.60379

Square

Length = n
Perimeter 326480492
Area 6661844478535129
Diagonal 115428284.90916

Cube

Length = n
Surface area 39971066871210774
Volume 5.4374056574491E+23
Space diagonal 141370199.95602

Equilateral Triangle

Length = n
Perimeter 244860369
Area 2.8846632772363E+15
Altitude 70685099.978011

Triangular Pyramid

Length = n
Surface area 2.8846632772363E+15
Volume 6.4080440207406E+22
Height 38476094.96972