38642721 (number)

38642721 is an odd 8-digits composite number following 38642720 and preceding 38642722. In scientific notation, it is written as 3.8642721 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 23728320 positive integers (up to 38642721) that are relatively prime to 38642721.

Interesting facts

Basic properties

Name

Name thirty-eight million six hundred forty-two thousand seven hundred twenty-one

Notation

Scientific notation 3.8642721 × 10^7
Engineering notation 3.8642721 × 10^6

Prime Factorization of 38642721

Prime Factorization 3 × 13 × 661 × 1499

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 38642721
Product of the distinct prime numbers

The prime factorization of 38642721 is 3 × 13 × 661 × 1499. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 78, 80, 237, 101, 2830, 7672, 95972, 81349, 362155, 20723, 3672803, 4885842, 84760990, 94017010, 19159959, 531941940, 1570064391, 2931012590

Basic calculations (n = 38642721)

Multiplication

n×y
n×2 77285442
n×3 115928163
n×4 154570884
n×5 193213605

Division

n÷y
n÷2 19321360.5
n÷3 12880907
n÷3 9660680.25
n÷5 7728544.2

Exponentiation

ny
n2 1493259886283841
n3 5.7703625166158E+22
n4 2.2298250879844E+30
n5 8.6166508753783E+37

Nth Root

y√n
2√n 6216.3269701649
3√n 338.08240290996
4√n 78.84368693919
5√n 32.916491606544

Divisors of 38642721

1, 3, 13, 39, 661, 1499, 1983, 4497, 8593, 19487, 25779, 58461, 990839, 2972517, 12880907, 38642721

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 -38642720
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 38642721 can be divided by 16 positive divisors. The sum of these divisors (counting 38642721) is 1, the average is 0.0625.

Base conversion 38642721

Base System Value
2 Binary 10010011011010010000100001
3 Ternary 2200201020211220
4 Quaternary 2103122100201
5 Quinary 34343031341
6 Senary 3500125253
8 Octal 223322041
10 Decimal 38642721
12 Duodecimal 10b36829
16 Hexadecimal 24da421
20 Vigesimal c1a6g1
36 Base36 n08wx

Cryptographic Hash Functions

md5 d10ee8773ffcbe909bc1a7ef8ddde0f4
sha1 aa755dd3f4df51fddaa32223140a38d85fbb7dfa
sha256 a2986b96e05634d0cfd70ae7818885405b6848cd4880866cff262a1d0c6e0f05
sha512 d5753e6bf6f8c6730416c0fd567a88336edc4890ed5c915acc36fe78472a0d174b9494f97cb84483693031348c1f5c9f7f5bfe567070d72c963613f3f606c5df
ripemd-160 8047ae644bfc0cd5b5b32455b5b9a7d4ddb8995f

38642721 as geometric shapes

Circle

Radius = n
Diameter 77285442
Circumference 242799376.81664
Area 4.6912142886496E+15

Sphere

Radius = n
Volume 2.4170837987667E+23
Surface area 1.8764857154599E+16
Circumference 242799376.81664

Square

Length = n
Perimeter 154570884
Area 1493259886283841
Diagonal 54649060.1252

Cube

Length = n
Surface area 8959559317703046
Volume 5.7703625166158E+22
Space diagonal 66931156.114709

Equilateral Triangle

Length = n
Perimeter 115928163
Area 6.4660049798703E+14
Altitude 33465578.057354

Triangular Pyramid

Length = n
Surface area 6.4660049798703E+14
Volume 6.8004374423395E+21
Height 18216353.375067