81994410 (number)

81994410 is an even 8-digits composite number following 81994409 and preceding 81994411. In scientific notation, it is written as 8.1994410 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 21865104 positive integers (up to 81994410) that are relatively prime to 81994410.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred ninety-four thousand four hundred ten

Notation

Scientific notation 8.1994410 × 10^7
Engineering notation 8.1994410 × 10^6

Prime Factorization of 81994410

Prime Factorization 2 × 5 × 3 × 9 × 303683

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81994410
Product of the distinct prime numbers

The prime factorization of 81994410 is 2 × 5 × 3 × 9 × 303683. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 7, 16, 18, 233, 231, 638, 712, 61942, 78602, 778436, 110814, 1829227, 3898983, 24938955, 74747647, 982473368, 480019146, 9159166369, 3312137072

Basic calculations (n = 81994410)

Multiplication

n×y
n×2 163988820
n×3 245983230
n×4 327977640
n×5 409972050

Division

n÷y
n÷2 40997205
n÷3 27331470
n÷3 20498602.5
n÷5 16398882

Exponentiation

ny
n2 6723083271248100
n3 5.5125524620686E+23
n4 4.5199848672136E+31
n5 3.7061349239611E+39

Nth Root

y√n
2√n 9055.0764767615
3√n 434.43827613646
4√n 95.158165581108
5√n 38.261046900608

Divisors of 81994410

1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 270, 303683, 607366, 911049, 1518415, 1822098, 2733147, 3036830, 4555245, 5466294, 8199441, 9110490, 13665735, 16398882, 27331470, 40997205, 81994410

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81994409
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81994410 can be divided by 32 positive divisors. The sum of these divisors (counting 81994410) is 1, the average is 0.03125.

Base conversion 81994410

Base System Value
2 Binary 100111000110010001010101010
3 Ternary 12201021202012000
4 Quaternary 10320302022222
5 Quinary 131442310120
6 Senary 12045231430
8 Octal 470621252
10 Decimal 81994410
12 Duodecimal 23562576
16 Hexadecimal 4e322aa
20 Vigesimal 15c960a
36 Base36 1ctfai

Cryptographic Hash Functions

md5 28592e630b7d5e001b6958217c27bac0
sha1 1757114f84cd0622e88e9479ed44aa58748a9738
sha256 07715d421c9182f0e8171457cf936554e1cee87f833b00efcdcda80c19d9f811
sha512 9afcf2cb56b2216e1978da872a15810efe5d2521cce9ad7d69f49dcdaef72ffaa50bcdfbfe859222ca5c6365d5a0a4c74cbf1559584568be39255f6fa5666404
ripemd-160 f01b66bb9b26ea43e16760626f04fadb650bfd5e

81994410 as geometric shapes

Circle

Radius = n
Diameter 163988820
Circumference 515186072.18286
Area 2.1121189014425E+16

Sphere

Radius = n
Volume 2.3090925756484E+24
Surface area 8.4484756057702E+16
Circumference 515186072.18286

Square

Length = n
Perimeter 327977640
Area 6723083271248100
Diagonal 115957606.66078

Cube

Length = n
Surface area 40338499627488600
Volume 5.5125524620686E+23
Space diagonal 142018484.05663

Equilateral Triangle

Length = n
Perimeter 245983230
Area 2.9111804523295E+15
Altitude 71009242.028317

Triangular Pyramid

Length = n
Surface area 2.9111804523295E+15
Volume 6.4966053792922E+22
Height 38652535.553593