81490268 (number)

81490268 is an even 8-digits composite number following 81490267 and preceding 81490269. In scientific notation, it is written as 8.1490268 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 40716000 positive integers (up to 81490268) that are relatively prime to 81490268.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety thousand two hundred sixty-eight

Notation

Scientific notation 8.1490268 × 10^7
Engineering notation 8.1490268 × 10^6

Prime Factorization of 81490268

Prime Factorization 2 × 2 × 1567 × 13001

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40745134
Product of the distinct prime numbers

The prime factorization of 81490268 is 2 × 2 × 1567 × 13001. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 2, 90, 24, 450, 99, 6713, 9854, 78152, 22323, 786401, 786941, 4637970, 5158121, 36248454, 22129135, 918216872, 762088632, 251401073, 3999831123

Basic calculations (n = 81490268)

Multiplication

n×y
n×2 162980536
n×3 244470804
n×4 325961072
n×5 407451340

Division

n÷y
n÷2 40745134
n÷3 27163422.666667
n÷3 20372567
n÷5 16298053.6

Exponentiation

ny
n2 6640663778711824
n3 5.4114947102512E+23
n4 4.4098415421895E+31
n5 3.5935916911056E+39

Nth Root

y√n
2√n 9027.1960209137
3√n 433.54606491119
4√n 95.011557301802
5√n 38.213881207775

Divisors of 81490268

1, 2, 4, 1567, 3134, 6268, 13001, 26002, 52004, 20372567, 40745134, 81490268

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81490267
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81490268 can be divided by 12 positive divisors. The sum of these divisors (counting 81490268) is 1, the average is 0.083333333333333.

Base conversion 81490268

Base System Value
2 Binary 100110110110111000101011100
3 Ternary 12200100010122002
4 Quaternary 10312313011130
5 Quinary 131330142033
6 Senary 12030341432
8 Octal 466670534
10 Decimal 81490268
12 Duodecimal 2335a878
16 Hexadecimal 4db715c
20 Vigesimal 15965d8
36 Base36 1cimak

Cryptographic Hash Functions

md5 6ea26814bd4b692dd8d1fa7ae7984a57
sha1 02e69f48e4e9f66f98ed591c7a0b4d022528636f
sha256 785bab0a2af31ab6d8d9a14916f07eb1e2a10b60b1d69bc7af4565be2ab9e70f
sha512 fea69e07915fb1085c7a6f3f6885c1b8f827a1fe8f2685e9f2c0b8a7aa26edbe0c1005041e6fadddd0d7f376ca2aaef07009c4b89edea2899ba501a6822c740d
ripemd-160 10225e6c1c9e1b374ad876a95f25b42630fce932

81490268 as geometric shapes

Circle

Radius = n
Diameter 162980536
Circumference 512018454.57573
Area 2.0862260542161E+16

Sphere

Radius = n
Volume 2.2667616035554E+24
Surface area 8.3449042168644E+16
Circumference 512018454.57573

Square

Length = n
Perimeter 325961072
Area 6640663778711824
Diagonal 115244642.20702

Cube

Length = n
Surface area 39843982672270944
Volume 5.4114947102512E+23
Space diagonal 141145284.4984

Equilateral Triangle

Length = n
Perimeter 244470804
Area 2.8754917651778E+15
Altitude 70572642.249202

Triangular Pyramid

Length = n
Surface area 2.8754917651778E+15
Volume 6.3775076766229E+22
Height 38414880.735673