638961009 (number)

638961009 is an odd 9-digits composite number following 638961008 and preceding 638961010. In scientific notation, it is written as 6.38961009 × 10^8. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 425974004 positive integers (up to 638961009) that are relatively prime to 638961009.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38961009 × 10^8
Engineering notation 6.38961009 × 10^6

Prime Factorization of 638961009

Prime Factorization 3 × 212987003

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 638961009
Product of the distinct prime numbers

The prime factorization of 638961009 is 3 × 212987003. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 4, 2, 15, 939, 823, 2783, 9057, 3632, 30355, 427183, 124872, 2563195, 9395749, 58888387, 99041851, 399154656, 749565964, 8644741332, 9297777911

Basic calculations (n = 638961009)

Multiplication

n×y
n×2 1277922018
n×3 1916883027
n×4 2555844036
n×5 3194805045

Division

n÷y
n÷2 319480504.5
n÷3 212987003
n÷3 159740252.25
n÷5 127792201.8

Exponentiation

ny
n2 408271171022298081
n3 2.6086935938202E+26
n4 1.6668534908792E+35
n5 1.0650543883873E+44

Nth Root

y√n
2√n 25277.678077703
3√n 861.30728212572
4√n 158.98955336029
5√n 57.689247154529

Divisors of 638961009

1, 3, 212987003, 638961009

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 -638961008
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 638961009 can be divided by 4 positive divisors. The sum of these divisors (counting 638961009) is 1, the average is 0.25.

Base conversion 638961009

Base System Value
2 Binary 100110000101011100010101110001
3 Ternary 1122112022120201120
4 Quaternary 212011130111301
5 Quinary 2302033223014
6 Senary 143223052453
8 Octal 4605342561
10 Decimal 638961009
12 Duodecimal 159ba1129
16 Hexadecimal 2615c571
20 Vigesimal 9jda2a9
36 Base36 akf5gx

Cryptographic Hash Functions

md5 3c019788f873c4e724547f92e3a46eaa
sha1 7fc509a55c785f749c855335732b6b2f1eea2570
sha256 3094d4acace1e2c9582b068880f1f04f02fddd2d6de6545ff0cd3809daabef8d
sha512 160b380bfbe36f8e2f31dd595586fe40b86a6366f425f0b7ee9871a554872a51530540eecaaf3e5d365fc84a681e0e3f095680128b45b21fbcd62fb7d2889bde
ripemd-160 78f71796a7396f60cb17eb25e9c315c95a587a33

638961009 as geometric shapes

Circle

Radius = n
Diameter 1277922018
Circumference 4014710423.6094
Area 1.2826217115562E+18

Sphere

Radius = n
Volume 1.0927270173083E+27
Surface area 5.1304868462246E+18
Circumference 4014710423.6094

Square

Length = n
Perimeter 2555844036
Area 408271171022298081
Diagonal 903627324.7554

Cube

Length = n
Surface area 2449627026133788486
Volume 2.6086935938202E+26
Space diagonal 1106712931.6435

Equilateral Triangle

Length = n
Perimeter 1916883027
Area 1.7678660286907E+17
Altitude 553356465.82174

Triangular Pyramid

Length = n
Surface area 1.7678660286907E+17
Volume 3.0743748837136E+25
Height 301209108.2518