81102904 (number)

81102904 is an even 8-digits composite number following 81102903 and preceding 81102905. In scientific notation, it is written as 8.1102904 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors. There are 40254912 positive integers (up to 81102904) that are relatively prime to 81102904.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1102904 × 10^7
Engineering notation 8.1102904 × 10^6

Prime Factorization of 81102904

Prime Factorization 2 × 2 × 2 × 137 × 73999

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20275726
Product of the distinct prime numbers

The prime factorization of 81102904 is 2 × 2 × 2 × 137 × 73999. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 6, 63, 69, 448, 896, 147, 128, 24523, 51148, 81800, 193336, 6078330, 6744670, 74504460, 50408934, 627564952, 643836645, 242009712, 5006359836

Basic calculations (n = 81102904)

Multiplication

n×y
n×2 162205808
n×3 243308712
n×4 324411616
n×5 405514520

Division

n÷y
n÷2 40551452
n÷3 27034301.333333
n÷3 20275726
n÷5 16220580.8

Exponentiation

ny
n2 6577681037233216
n3 5.3346903370535E+23
n4 4.3265887827577E+31
n5 3.5089891469548E+39

Nth Root

y√n
2√n 9005.7150743292
3√n 432.85801978983
4√n 94.898446111247
5√n 38.177481994453

Divisors of 81102904

1, 2, 4, 8, 137, 274, 548, 1096, 73999, 147998, 295996, 591992, 10137863, 20275726, 40551452, 81102904

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 -81102903
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 81102904 can be divided by 16 positive divisors. The sum of these divisors (counting 81102904) is 1, the average is 0.0625.

Base conversion 81102904

Base System Value
2 Binary 100110101011000100000111000
3 Ternary 12122121110021021
4 Quaternary 10311120200320
5 Quinary 131230243104
6 Senary 12014152224
8 Octal 465304070
10 Decimal 81102904
12 Duodecimal 231b2674
16 Hexadecimal 4d58838
20 Vigesimal 156hh54
36 Base36 1cabeg

Cryptographic Hash Functions

md5 270930dc547f570de49ad397da31b9a6
sha1 573d6fc7ad1b271d736ccb233ab8c1740b5a3cb0
sha256 4f4376cb77c98c6288e8acbea9d28ea5d1ccede64ae9d05e05c5f8295e2cf456
sha512 e4a872a70761335887e8f4450f64f4fee0b04353a110db09a9f12164e9e9e161d1394c9b7247e7b69b4400f1a26ad58381a5d28d002d700f78f14bb699ef7b89
ripemd-160 e2bb5c0fcc0ff54144c9e82668d6b80e2f48916d

81102904 as geometric shapes

Circle

Radius = n
Diameter 162205808
Circumference 509584574.7824
Area 2.0664394424229E+16

Sphere

Radius = n
Volume 2.2345898629418E+24
Surface area 8.2657577696915E+16
Circumference 509584574.7824

Square

Length = n
Perimeter 324411616
Area 6577681037233216
Diagonal 114696826.78464

Cube

Length = n
Surface area 39466086223399296
Volume 5.3346903370535E+23
Space diagonal 140474350.36938

Equilateral Triangle

Length = n
Perimeter 243308712
Area 2.8482194381176E+15
Altitude 70237175.184691

Triangular Pyramid

Length = n
Surface area 2.8482194381176E+15
Volume 6.2869928547681E+22
Height 38232275.594881