638366921 (number)

638366921 is an odd 9-digits composite number following 638366920 and preceding 638366922. In scientific notation, it is written as 6.38366921 × 10^8. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 604465200 positive integers (up to 638366921) that are relatively prime to 638366921.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million three hundred sixty-six thousand nine hundred twenty-one

Notation

Scientific notation 6.38366921 × 10^8
Engineering notation 6.38366921 × 10^6

Prime Factorization of 638366921

Prime Factorization 19 × 14551 × 2309

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638366921
Product of the distinct prime numbers

The prime factorization of 638366921 is 19 × 14551 × 2309. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638366921)

Multiplication

n×y
n×2 1276733842
n×3 1915100763
n×4 2553467684
n×5 3191834605

Division

n÷y
n÷2 319183460.5
n÷3 212788973.66667
n÷3 159591730.25
n÷5 127673384.2

Exponentiation

ny
n2 407512325827020241
n3 2.6014238870774E+26
n4 1.6606629570095E+35
n5 1.0601122986849E+44

Nth Root

y√n
2√n 25265.924107382
3√n 861.04025957865
4√n 158.95258446273
5√n 57.678515594281

Divisors of 638366921

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 -638366920
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 638366921 can be divided by 8 positive divisors. The sum of these divisors (counting 638366921) is 1, the average is 0.125.

Base conversion 638366921

Base System Value
2 Binary 100110000011001011010011001001
3 Ternary 1122111012101210022
4 Quaternary 212003023103021
5 Quinary 2301410220141
6 Senary 143202230225
8 Octal 4603132311
10 Decimal 638366921
12 Duodecimal 159955375
16 Hexadecimal 260cb4c9
20 Vigesimal 9j9fh61
36 Base36 ak2f2h

Cryptographic Hash Functions

md5 595d9aa189ab5fb58e0a2f20ce1fff60
sha1 0b14cff2cd54dcc175d0a7814630e6f4fac11826
sha256 2f668bf6ee380ff7b1290b6ad41ddd0e0d8c48eaffc0c2116ad0a44dd89040a7
sha512 86daba1ebbdd5ec4814725e792606bf1617706c68c3aed652f6fd92af07d158b7408cc69697546001fd9b26d13fb80faa0abfcf8e717016c5877ce23255b5046
ripemd-160 d811a5d77db17e7cba284501deae1007ee23ba46

638366921 as geometric shapes

Circle

Radius = n
Diameter 1276733842
Circumference 4010977658.6167
Area 1.2802377290655E+18

Sphere

Radius = n
Volume 1.0896818896687E+27
Surface area 5.1209509162618E+18
Circumference 4010977658.6167

Square

Length = n
Perimeter 2553467684
Area 407512325827020241
Diagonal 902787157.44855

Cube

Length = n
Surface area 2445073954962121446
Volume 2.6014238870774E+26
Space diagonal 1105683941.0433

Equilateral Triangle

Length = n
Perimeter 1915100763
Area 1.7645801326074E+17
Altitude 552841970.52165

Triangular Pyramid

Length = n
Surface area 1.7645801326074E+17
Volume 3.0658074521552E+25
Height 300929052.48285