387831221 (number)

387831221 is an odd 9-digits composite number following 387831220 and preceding 387831222. In scientific notation, it is written as 3.87831221 × 10^8. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 370968972 positive integers (up to 387831221) that are relatively prime to 387831221.

Interesting facts

Basic properties

Name

Name three hundred eighty-seven million eight hundred thirty-one thousand two hundred twenty-one

Notation

Scientific notation 3.87831221 × 10^8
Engineering notation 3.87831221 × 10^6

Prime Factorization of 387831221

Prime Factorization 23 × 16862227

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 387831221
Product of the distinct prime numbers

The prime factorization of 387831221 is 23 × 16862227. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 2, 30, 52, 144, 592, 78, 738, 15938, 73103, 876336, 293604, 6075730, 3144857, 9697219, 7906892, 396245389, 274820028, 528574337, 804000079

Basic calculations (n = 387831221)

Multiplication

n×y
n×2 775662442
n×3 1163493663
n×4 1551324884
n×5 1939156105

Division

n÷y
n÷2 193915610.5
n÷3 129277073.66667
n÷3 96957805.25
n÷5 77566244.2

Exponentiation

ny
n2 150413055982350841
n3 5.8334879155976E+25
n4 2.262408740995E+34
n5 8.7743274442116E+42

Nth Root

y√n
2√n 19693.430909824
3√n 729.25753058615
4√n 140.33328511021
5√n 52.206977842848

Divisors of 387831221

1, 23, 16862227, 387831221

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -387831220
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 387831221 can be divided by 4 positive divisors. The sum of these divisors (counting 387831221) is 1, the average is 0.25.

Base conversion 387831221

Base System Value
2 Binary 10111000111011101010110110101
3 Ternary 1000000202212102022
4 Quaternary 113013131112311
5 Quinary 1243241044341
6 Senary 102252322525
8 Octal 2707352665
10 Decimal 387831221
12 Duodecimal a9a73445
16 Hexadecimal 171dd5b5
20 Vigesimal 613ii11
36 Base36 6ewkhh

Cryptographic Hash Functions

md5 b63de2867c43def3c411395904b8229d
sha1 2d9d79a089b96b15c27100bfc3df710f7df2090b
sha256 be235f0139cd63a07d3e4c19bddd376fd5417812c1027c2c7c04eb65bf2566d3
sha512 4f29a797c3fb8aca25764087e4837f25210fea2dff4668616dac831636ca4c1a06e478198fb21f619b2ad2194511778c99f3f522879ff714c5331db676b97a22
ripemd-160 26c36efb0a6d4a63ce726a502f2ad6eb0fb2d8fe

387831221 as geometric shapes

Circle

Radius = n
Diameter 775662442
Circumference 2436815429.4527
Area 4.7253655167814E+17

Sphere

Radius = n
Volume 2.4435257040595E+26
Surface area 1.8901462067126E+18
Circumference 2436815429.4527

Square

Length = n
Perimeter 1551324884
Area 150413055982350841
Diagonal 548476172.64992

Cube

Length = n
Surface area 902478335894105046
Volume 5.8334879155976E+25
Space diagonal 671743379.53347

Equilateral Triangle

Length = n
Perimeter 1163493663
Area 6.5130763770783E+16
Altitude 335871689.76674

Triangular Pyramid

Length = n
Surface area 6.5130763770783E+16
Volume 6.8748314384815E+24
Height 182825390.88331