638821428 (number)

638821428 is an even 9-digits composite number following 638821427 and preceding 638821429. In scientific notation, it is written as 6.38821428 × 10^8. The sum of its digits is 42. It has a total of 6 prime factors and 48 positive divisors. There are 177581376 positive integers (up to 638821428) that are relatively prime to 638821428.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million eight hundred twenty-one thousand four hundred twenty-eight

Notation

Scientific notation 6.38821428 × 10^8
Engineering notation 6.38821428 × 10^6

Prime Factorization of 638821428

Prime Factorization 2 × 2 × 21 × 7 × 37 × 29363

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 319410714
Product of the distinct prime numbers

The prime factorization of 638821428 is 2 × 2 × 21 × 7 × 37 × 29363. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 2, 56, 78, 436, 422, 1348, 292, 63523, 42207, 566015, 380011, 9497179, 1496993, 40771955, 32943229, 632596212, 170304919, 751669788, 2129858073

Basic calculations (n = 638821428)

Multiplication

n×y
n×2 1277642856
n×3 1916464284
n×4 2555285712
n×5 3194107140

Division

n÷y
n÷2 319410714
n÷3 212940476
n÷3 159705357
n÷5 127764285.6

Exponentiation

ny
n2 408092816871959184
n3 2.6069843603069E+26
n4 1.6653974718249E+35
n5 1.0638915911388E+44

Nth Root

y√n
2√n 25274.916973157
3√n 861.2445600476
4√n 158.98086983394
5√n 57.686726491641

Divisors of 638821428

1, 2, 4, 7, 14, 21, 28, 37, 42, 74, 84, 147, 148, 259, 294, 518, 588, 777, 1036, 1554, 3108, 5439, 10878, 21756, 29363, 58726, 117452, 205541, 411082, 616623, 822164, 1086431, 1233246, 2172862, 2466492, 4316361, 4345724, 7605017, 8632722, 15210034, 17265444, 22815051, 30420068, 45630102, 91260204, 159705357, 319410714, 638821428

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638821427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638821428 can be divided by 48 positive divisors. The sum of these divisors (counting 638821428) is 1, the average is 0.020833333333333.

Base conversion 638821428

Base System Value
2 Binary 100110000100111010010000110100
3 Ternary 1122112001111020220
4 Quaternary 212010322100310
5 Quinary 2302014241203
6 Senary 143220054340
8 Octal 4604722064
10 Decimal 638821428
12 Duodecimal 159b343b0
16 Hexadecimal 2613a434
20 Vigesimal 9jccdb8
36 Base36 akc5ro

Cryptographic Hash Functions

md5 e56842ac6b5277132c8fcfa763dd8186
sha1 026c2e7d0c23f7531dfb9cb8f51ede5ccaf344c4
sha256 de9ec08d6ec7faecc4cc42ee0f7d9f0d4051163008bc9f400e3c607dda5b4975
sha512 2c4fa4ebdba3c391e2712d6ff775dd06737d0671891b9aba5a35684d54c0b8280f021cdbdbb9a75bcd2f45e06b1f223de1523ec73e2aae5e0bd01c6f00066f1e
ripemd-160 e2631ccb18728ec4f932349d67590d62938f20dc

638821428 as geometric shapes

Circle

Radius = n
Diameter 1277642856
Circumference 4013833410.3211
Area 1.2820613954677E+18

Sphere

Radius = n
Volume 1.0920110552485E+27
Surface area 5.1282455818708E+18
Circumference 4013833410.3211

Square

Length = n
Perimeter 2555285712
Area 408092816871959184
Diagonal 903429927.41215

Cube

Length = n
Surface area 2448556901231755104
Volume 2.6069843603069E+26
Space diagonal 1106471170.2597

Equilateral Triangle

Length = n
Perimeter 1916464284
Area 1.7670937325653E+17
Altitude 553235585.12985

Triangular Pyramid

Length = n
Surface area 1.7670937325653E+17
Volume 3.0723605327004E+25
Height 301143309.13738