381618981 (number)

381618981 is an odd 9-digits composite number following 381618980 and preceding 381618982. In scientific notation, it is written as 3.81618981 × 10^8. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 254332224 positive integers (up to 381618981) that are relatively prime to 381618981.

Interesting facts

Basic properties

Name

Name three hundred eighty-one million six hundred eighteen thousand nine hundred eighty-one

Notation

Scientific notation 3.81618981 × 10^8
Engineering notation 3.81618981 × 10^6

Prime Factorization of 381618981

Prime Factorization 9 × 5113 × 8293

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 381618981
Product of the distinct prime numbers

The prime factorization of 381618981 is 9 × 5113 × 8293. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 98, 86, 844, 622, 1517, 2923, 44802, 6804, 82254, 543721, 6219471, 4931229, 58809305, 81018237, 934824088, 306477596, 6256549603, 683215187

Basic calculations (n = 381618981)

Multiplication

n×y
n×2 763237962
n×3 1144856943
n×4 1526475924
n×5 1908094905

Division

n÷y
n÷2 190809490.5
n÷3 127206327
n÷3 95404745.25
n÷5 76323796.2

Exponentiation

ny
n2 145633046659478361
n3 5.5576334866116E+25
n4 2.1208984279322E+34
n5 8.0937509687198E+42

Nth Root

y√n
2√n 19535.070539929
3√n 725.34283017136
4√n 139.76791670455
5√n 52.038646651264

Divisors of 381618981

1, 9, 5113, 8293, 46017, 74637, 42402109, 381618981

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 -381618980
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 381618981 can be divided by 8 positive divisors. The sum of these divisors (counting 381618981) is 1, the average is 0.125.

Base conversion 381618981

Base System Value
2 Binary 10110101111110000101100100101
3 Ternary 222121002020211100
4 Quaternary 112233300230211
5 Quinary 1240143301411
6 Senary 101511230313
8 Octal 2657605445
10 Decimal 381618981
12 Duodecimal a7978399
16 Hexadecimal 16bf0b25
20 Vigesimal 5j52791
36 Base36 6b7f39

Cryptographic Hash Functions

md5 8606c973b1bdd9adc980ae21b0b8078d
sha1 a2d048f90262cfac08ec56a8bb3b20aae89026e9
sha256 dec1320a4161261b3c77964c1f83eaf1fb394940186b4a6d029c7eb3c3a62fd0
sha512 b117323834affd46f6e4f7ec0a844fefaac82dd80f5cb90338048e3f8d24e988763cfca832195dbadcc031313bd9b173859f9609f7439b3695898953e3575c69
ripemd-160 0582d1a94e129e167d52721ef09bc0e9689948eb

381618981 as geometric shapes

Circle

Radius = n
Diameter 763237962
Circumference 2397782774.36
Area 4.5751970950532E+17

Sphere

Radius = n
Volume 2.3279760710511E+26
Surface area 1.8300788380213E+18
Circumference 2397782774.36

Square

Length = n
Perimeter 1526475924
Area 145633046659478361
Diagonal 539690738.5892

Cube

Length = n
Surface area 873798279956870166
Volume 5.5576334866116E+25
Space diagonal 660983464.22466

Equilateral Triangle

Length = n
Perimeter 1144856943
Area 6.3060959018816E+16
Altitude 330491732.11233

Triangular Pyramid

Length = n
Surface area 6.3060959018816E+16
Volume 6.5497338762208E+24
Height 179896912.86307