81490178 (number)

81490178 is an even 8-digits composite number following 81490177 and preceding 81490179. In scientific notation, it is written as 8.1490178 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 31749360 positive integers (up to 81490178) that are relatively prime to 81490178.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety thousand one hundred seventy-eight

Notation

Scientific notation 8.1490178 × 10^7
Engineering notation 8.1490178 × 10^6

Prime Factorization of 81490178

Prime Factorization 2 × 77 × 529157

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81490178
Product of the distinct prime numbers

The prime factorization of 81490178 is 2 × 77 × 529157. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 10, 19, 51, 506, 266, 2605, 9910, 60417, 84799, 875791, 704267, 7173874, 4679357, 43625900, 27920997, 178566044, 813740869, 4814880583, 475825157

Basic calculations (n = 81490178)

Multiplication

n×y
n×2 162980356
n×3 244470534
n×4 325960712
n×5 407450890

Division

n÷y
n÷2 40745089
n÷3 27163392.666667
n÷3 20372544.5
n÷5 16298035.6

Exponentiation

ny
n2 6640649110471684
n3 5.4114767804788E+23
n4 4.4098220608408E+31
n5 3.5935718468625E+39

Nth Root

y√n
2√n 9027.1910359757
3√n 433.54590530457
4√n 95.011531068475
5√n 38.213872766888

Divisors of 81490178

1, 2, 77, 154, 529157, 1058314, 40745089, 81490178

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81490177
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81490178 can be divided by 8 positive divisors. The sum of these divisors (counting 81490178) is 1, the average is 0.125.

Base conversion 81490178

Base System Value
2 Binary 100110110110111000100000010
3 Ternary 12200100010111202
4 Quaternary 10312313010002
5 Quinary 131330141203
6 Senary 12030341202
8 Octal 466670402
10 Decimal 81490178
12 Duodecimal 2335a802
16 Hexadecimal 4db7102
20 Vigesimal 159658i
36 Base36 1cim82

Cryptographic Hash Functions

md5 8a87ef5c14475a56d9a53987e58e75f1
sha1 16b8c3f724b1ac66c3bf72b363be41c6dca53601
sha256 6375f9046b9d38216dc86309d9948cf5a125769949d1e8f4cc17969e60cca11e
sha512 76c69cb96ece40ce39d8d65a7a37e17c00d5c514b6fde9e62f4e2dc4a691496d4f8dca0d3014c36e1433a8e084eb8e2f789d99fbe4f561a9c329a370ebace848
ripemd-160 13cc5a79f663f3ae3635e950409340528f60b5fb

81490178 as geometric shapes

Circle

Radius = n
Diameter 162980356
Circumference 512017889.08905
Area 2.0862214460525E+16

Sphere

Radius = n
Volume 2.2667540931499E+24
Surface area 8.3448857842102E+16
Circumference 512017889.08905

Square

Length = n
Perimeter 325960712
Area 6640649110471684
Diagonal 115244514.9278

Cube

Length = n
Surface area 39843894662830104
Volume 5.4114767804788E+23
Space diagonal 141145128.61383

Equilateral Triangle

Length = n
Perimeter 244470534
Area 2.8754854136435E+15
Altitude 70572564.306916

Triangular Pyramid

Length = n
Surface area 2.8754854136435E+15
Volume 6.3774865461835E+22
Height 38414838.309266