81122904 (number)

81122904 is an even 8-digits composite number following 81122903 and preceding 81122905. In scientific notation, it is written as 8.1122904 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors. There are 27040896 positive integers (up to 81122904) that are relatively prime to 81122904.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred twenty-two thousand nine hundred four

Notation

Scientific notation 8.1122904 × 10^7
Engineering notation 8.1122904 × 10^6

Prime Factorization of 81122904

Prime Factorization 2 × 2 × 2 × 27 × 375569

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20280726
Product of the distinct prime numbers

The prime factorization of 81122904 is 2 × 2 × 2 × 27 × 375569. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 6, 19, 16, 477, 174, 9093, 2219, 97199, 98570, 969396, 413241, 3525074, 6303676, 89549864, 28093759, 949276057, 523506570, 3451534192, 9932346945

Basic calculations (n = 81122904)

Multiplication

n×y
n×2 162245808
n×3 243368712
n×4 324491616
n×5 405614520

Division

n÷y
n÷2 40561452
n÷3 27040968
n÷3 20280726
n÷5 16224580.8

Exponentiation

ny
n2 6580925553393216
n3 5.3386379189906E+23
n4 4.3308581139304E+31
n5 3.51331787014E+39

Nth Root

y√n
2√n 9006.8254118752
3√n 432.89359783717
4√n 94.904296066486
5√n 38.179364724409

Divisors of 81122904

1, 2, 4, 8, 27, 54, 108, 216, 375569, 751138, 1502276, 3004552, 10140363, 20280726, 40561452, 81122904

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 -81122903
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 81122904 can be divided by 16 positive divisors. The sum of these divisors (counting 81122904) is 1, the average is 0.0625.

Base conversion 81122904

Base System Value
2 Binary 100110101011101011001011000
3 Ternary 12122122110201000
4 Quaternary 10311131121120
5 Quinary 131231413104
6 Senary 12014425000
8 Octal 465353130
10 Decimal 81122904
12 Duodecimal 23202160
16 Hexadecimal 4d5d658
20 Vigesimal 1570754
36 Base36 1caqu0

Cryptographic Hash Functions

md5 e37888940a618ae7156feaf439bff92e
sha1 b760dad0a24be2724dbdc92123f02ee49888c976
sha256 00b62326d8669ac3f6dd6f4cd2d12f15d3d6ae01d44edc914246b25f37d75143
sha512 90aef3c2e166c12b7ddb9904bfa94e33ecf29fee498921ce8eef4dddbe4f499da0f15c5ab432fd2722fe88f7b3eb3adaa3d968f4f2ce3a36495d6cd5f7c6f516
ripemd-160 6700b6cd6dade5f33bfc75bcfbc9b7d9a4faaf71

81122904 as geometric shapes

Circle

Radius = n
Diameter 162245808
Circumference 509710238.48854
Area 2.0674587372361E+16

Sphere

Radius = n
Volume 2.2362434221969E+24
Surface area 8.2698349489446E+16
Circumference 509710238.48854

Square

Length = n
Perimeter 324491616
Area 6580925553393216
Diagonal 114725111.05589

Cube

Length = n
Surface area 39485553320359296
Volume 5.3386379189906E+23
Space diagonal 140508991.38553

Equilateral Triangle

Length = n
Perimeter 243368712
Area 2.8496243548263E+15
Altitude 70254495.692766

Triangular Pyramid

Length = n
Surface area 2.8496243548263E+15
Volume 6.2916451246965E+22
Height 38241703.685297