638861221 (number)

638861221 is an odd 9-digits composite number following 638861220 and preceding 638861222. In scientific notation, it is written as 6.38861221 × 10^8. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 623279200 positive integers (up to 638861221) that are relatively prime to 638861221.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million eight hundred sixty-one thousand two hundred twenty-one

Notation

Scientific notation 6.38861221 × 10^8
Engineering notation 6.38861221 × 10^6

Prime Factorization of 638861221

Prime Factorization 41 × 15581981

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638861221
Product of the distinct prime numbers

The prime factorization of 638861221 is 41 × 15581981. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 6, 11, 86, 439, 569, 3665, 7999, 94097, 83030, 981036, 328703, 5582503, 2111900, 29457265, 62194747, 193917773, 877804718, 4739831384, 8667603988

Basic calculations (n = 638861221)

Multiplication

n×y
n×2 1277722442
n×3 1916583663
n×4 2555444884
n×5 3194306105

Division

n÷y
n÷2 319430610.5
n÷3 212953740.33333
n÷3 159715305.25
n÷5 127772244.2

Exponentiation

ny
n2 408143659697610841
n3 2.6074715677782E+26
n4 1.6658124695136E+35
n5 1.0642229882305E+44

Nth Root

y√n
2√n 25275.704164276
3√n 861.26244234965
4√n 158.98334555631
5√n 57.687445149661

Divisors of 638861221

1, 41, 15581981, 638861221

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 -638861220
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 638861221 can be divided by 4 positive divisors. The sum of these divisors (counting 638861221) is 1, the average is 0.25.

Base conversion 638861221

Base System Value
2 Binary 100110000101000011111110100101
3 Ternary 1122112010111211201
4 Quaternary 212011003332211
5 Quinary 2302022024341
6 Senary 143221002501
8 Octal 4605037645
10 Decimal 638861221
12 Duodecimal 159b53431
16 Hexadecimal 26143fa5
20 Vigesimal 9jchd11
36 Base36 akd0h1

Cryptographic Hash Functions

md5 b2272577461ac3fc09150701abb4d885
sha1 713768d317d52485f9960094c0de4fa34a0bce60
sha256 3ac4b8530fb0ed3c2af64897abc4344fc6ff5808e2b885566b02e67bbdcb84f4
sha512 cb5d47ae0c815c60c8df2f3b465119ef468e70f6cf07b7eb1bedff3e2830e1af4289e3f1ff4fbce35a9ccb1b0fd956348335e6fe990da020eb5a4c18e9557b24
ripemd-160 2f51211c82723603e5c43536f3c22eef8badef6b

638861221 as geometric shapes

Circle

Radius = n
Diameter 1277722442
Circumference 4014083437.114
Area 1.2822211229153E+18

Sphere

Radius = n
Volume 1.0922151362369E+27
Surface area 5.1288844916611E+18
Circumference 4014083437.114

Square

Length = n
Perimeter 2555444884
Area 408143659697610841
Diagonal 903486203.21244

Cube

Length = n
Surface area 2448861958185665046
Volume 2.6074715677782E+26
Space diagonal 1106540093.7575

Equilateral Triangle

Length = n
Perimeter 1916583663
Area 1.7673138884584E+17
Altitude 553270046.87874

Triangular Pyramid

Length = n
Surface area 1.7673138884584E+17
Volume 3.0729347122119E+25
Height 301162067.73748