81640190 (number)

81640190 is an even 8-digits composite number following 81640189 and preceding 81640191. In scientific notation, it is written as 8.1640190 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 32563680 positive integers (up to 81640190) that are relatively prime to 81640190.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand one hundred ninety

Notation

Scientific notation 8.1640190 × 10^7
Engineering notation 8.1640190 × 10^6

Prime Factorization of 81640190

Prime Factorization 2 × 5 × 359 × 22741

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81640190
Product of the distinct prime numbers

The prime factorization of 81640190 is 2 × 5 × 359 × 22741. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 60, 74, 203, 183, 1864, 4027, 37426, 48126, 55050, 911030, 9201167, 4648013, 66997868, 5000330, 588352824, 898854176, 1235958998, 5417540150

Basic calculations (n = 81640190)

Multiplication

n×y
n×2 163280380
n×3 244920570
n×4 326560760
n×5 408200950

Division

n÷y
n÷2 40820095
n÷3 27213396.666667
n÷3 20410047.5
n÷5 16328038

Exponentiation

ny
n2 6665120623236100
n3 5.4414171405391E+23
n4 4.4423832922287E+31
n5 3.6267701603038E+39

Nth Root

y√n
2√n 9035.4961125552
3√n 433.81177465083
4√n 95.05522664512
5√n 38.227931695602

Divisors of 81640190

1, 2, 5, 10, 359, 718, 1795, 3590, 22741, 45482, 113705, 227410, 8164019, 16328038, 40820095, 81640190

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 -81640189
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 81640190 can be divided by 16 positive divisors. The sum of these divisors (counting 81640190) is 1, the average is 0.0625.

Base conversion 81640190

Base System Value
2 Binary 100110111011011101011111110
3 Ternary 12200121202021202
4 Quaternary 10313123223332
5 Quinary 131344441230
6 Senary 12033455502
8 Octal 467335376
10 Decimal 81640190
12 Duodecimal 23411592
16 Hexadecimal 4ddbafe
20 Vigesimal 15a509a
36 Base36 1cltz2

Cryptographic Hash Functions

md5 bda1aef4817ff9e29f8bb857e7e591fe
sha1 10655bfa0245cdd6727feb0fd5b295f2d38444bf
sha256 6a17b2ae999abb9c31bd4dfffceb127d967638058dd211bddf7ba1ae36975d36
sha512 ac8357d1a326f47568ed1d728c27ed9243b5773d2e3669323d59f0399b29148d0d9b166f70bedfe9690395ed5dc06a661d6b07be3d67fa5712f272cb7f9d0f40
ripemd-160 f04ea98b5007bd930655bb7e85c67d2222e34330

81640190 as geometric shapes

Circle

Radius = n
Diameter 163280380
Circumference 512960442.28335
Area 2.0939093985248E+16

Sphere

Radius = n
Volume 2.2792954818447E+24
Surface area 8.3756375940993E+16
Circumference 512960442.28335

Square

Length = n
Perimeter 326560760
Area 6665120623236100
Diagonal 115456663.93272

Cube

Length = n
Surface area 39990723739416600
Volume 5.4414171405391E+23
Space diagonal 141404957.01958

Equilateral Triangle

Length = n
Perimeter 244920570
Area 2.886081889505E+15
Altitude 70702478.509788

Triangular Pyramid

Length = n
Surface area 2.886081889505E+15
Volume 6.4127715988999E+22
Height 38485554.644239