181982021 (number)

181982021 is an odd 9-digits composite number following 181982020 and preceding 181982022. In scientific notation, it is written as 1.81982021 × 10^8. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 162860544 positive integers (up to 181982021) that are relatively prime to 181982021.

Interesting facts

Basic properties

Name

Name one hundred eighty-one million nine hundred eighty-two thousand twenty-one

Notation

Scientific notation 1.81982021 × 10^8
Engineering notation 1.81982021 × 10^6

Prime Factorization of 181982021

Prime Factorization 13 × 37 × 953 × 397

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 181982021
Product of the distinct prime numbers

The prime factorization of 181982021 is 13 × 37 × 953 × 397. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 80, 23, 252, 432, 959, 3999, 8665, 48819, 528360, 458803, 6407203, 1564100, 59563862, 69801683, 333039391, 428080319, 2084858593, 5430762897

Basic calculations (n = 181982021)

Multiplication

n×y
n×2 363964042
n×3 545946063
n×4 727928084
n×5 909910105

Division

n÷y
n÷2 90991010.5
n÷3 60660673.666667
n÷3 45495505.25
n÷5 36396404.2

Exponentiation

ny
n2 33117455967244441
n3 6.0267815672977E+24
n4 1.0967658897424E+33
n5 1.9959167317918E+41

Nth Root

y√n
2√n 13490.071200702
3√n 566.68644940548
4√n 116.14676577805
5√n 44.875127628316

Divisors of 181982021

1, 13, 37, 397, 481, 953, 5161, 12389, 14689, 35261, 190957, 378341, 458393, 4918433, 13998617, 181982021

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 -181982020
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 181982021 can be divided by 16 positive divisors. The sum of these divisors (counting 181982021) is 1, the average is 0.0625.

Base conversion 181982021

Base System Value
2 Binary 1010110110001101001101000101
3 Ternary 110200102122101212
4 Quaternary 22312031031011
5 Quinary 333041411041
6 Senary 30020301205
8 Octal 1266151505
10 Decimal 181982021
12 Duodecimal 50b41805
16 Hexadecimal ad8d345
20 Vigesimal 2gh7f11
36 Base36 30ci85

Cryptographic Hash Functions

md5 838e827e2b9d2af1ae99ce1fce1127e1
sha1 6ec79b75cc57c8b27c495a3802bdb92a104f71c2
sha256 9037900d64cd64bbf05bb37bfdc778e5313d6d3e092d8f04c1b9d9c55e11c095
sha512 feebb9c44948918d2090a9b7040a90be8770fc3792c07dc434cc2f010aba349c4d6f36b857e64c6f753d4979dba8f664b2e1ea3d80acae760074f11686abc179
ripemd-160 2181bc30f583e663ffd2a0af4893f2dadadc4ac3

181982021 as geometric shapes

Circle

Radius = n
Diameter 363964042
Circumference 1143426760.518
Area 1.0404155637228E+17

Sphere

Radius = n
Volume 2.5244923595484E+25
Surface area 4.1616622548911E+17
Circumference 1143426760.518

Square

Length = n
Perimeter 727928084
Area 33117455967244441
Diagonal 257361442.20627

Cube

Length = n
Surface area 198704735803466646
Volume 6.0267815672977E+24
Space diagonal 315202106.43607

Equilateral Triangle

Length = n
Perimeter 545946063
Area 1.4340279088173E+16
Altitude 157601053.21803

Triangular Pyramid

Length = n
Surface area 1.4340279088173E+16
Volume 7.1026301916104E+23
Height 85787147.402088