181028081 (number)

181028081 is an odd 9-digits composite number following 181028080 and preceding 181028082. In scientific notation, it is written as 1.81028081 × 10^8. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 166225680 positive integers (up to 181028081) that are relatively prime to 181028081.

Interesting facts

Basic properties

Name

Name one hundred eighty-one million twenty-eight thousand eighty-one

Notation

Scientific notation 1.81028081 × 10^8
Engineering notation 1.81028081 × 10^6

Prime Factorization of 181028081

Prime Factorization 13 × 191 × 72907

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 181028081
Product of the distinct prime numbers

The prime factorization of 181028081 is 13 × 191 × 72907. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 4, 72, 51, 825, 346, 2481, 1723, 77849, 42624, 73808, 423995, 3840819, 4223742, 32564144, 806523, 999179776, 292000219, 9396927827, 8369883445

Basic calculations (n = 181028081)

Multiplication

n×y
n×2 362056162
n×3 543084243
n×4 724112324
n×5 905140405

Division

n÷y
n÷2 90514040.5
n÷3 60342693.666667
n÷3 45257020.25
n÷5 36205616.2

Exponentiation

ny
n2 32771166110542561
n3 5.9325013131238E+24
n4 1.0739493282448E+33
n5 1.9441498598339E+41

Nth Root

y√n
2√n 13454.667628745
3√n 565.69453419447
4√n 115.99425687828
5√n 44.827982067854

Divisors of 181028081

1, 13, 191, 2483, 72907, 947791, 13925237, 181028081

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 -181028080
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 181028081 can be divided by 8 positive divisors. The sum of these divisors (counting 181028081) is 1, the average is 0.125.

Base conversion 181028081

Base System Value
2 Binary 1010110010100100010011110001
3 Ternary 110121122011211202
4 Quaternary 22302210103301
5 Quinary 332320344311
6 Senary 25544020545
8 Octal 1262442361
10 Decimal 181028081
12 Duodecimal 50761755
16 Hexadecimal aca44f1
20 Vigesimal 2gb8a41
36 Base36 2zs25t

Cryptographic Hash Functions

md5 c40f7731a2d8d0f8514265f7d2a1e235
sha1 e04987fb137aabbb4a74b768e1cbc9e1a87240c7
sha256 01f5fdc4b7d4269ece63202b928786f8e772f616fb1f64b29f8017d0d28d7d6a
sha512 7a09e6621cf9beee766ea2f7b235632073978142aa86e1eed3c0b28927a32d3180598dacc8276441e2b7b020cd143b13a89742c73967ff1f9ab262416134af69
ripemd-160 4c0cb6120a65bcce94249aec2fc32e8bc7c8eff2

181028081 as geometric shapes

Circle

Radius = n
Diameter 362056162
Circumference 1137432978.7261
Area 1.0295365470245E+17

Sphere

Radius = n
Volume 2.4850003390295E+25
Surface area 4.1181461880981E+17
Circumference 1137432978.7261

Square

Length = n
Perimeter 724112324
Area 32771166110542561
Diagonal 256012367.32058

Cube

Length = n
Surface area 196626996663255366
Volume 5.9325013131238E+24
Space diagonal 313549833.88869

Equilateral Triangle

Length = n
Perimeter 543084243
Area 1.4190331181685E+16
Altitude 156774916.94435

Triangular Pyramid

Length = n
Surface area 1.4190331181685E+16
Volume 6.9915198465132E+23
Height 85337455.773525