638993870 (number)

638993870 is an even 9-digits composite number following 638993869 and preceding 638993871. In scientific notation, it is written as 6.38993870 × 10^8. The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors. There are 252361824 positive integers (up to 638993870) that are relatively prime to 638993870.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million nine hundred ninety-three thousand eight hundred seventy

Notation

Scientific notation 6.38993870 × 10^8
Engineering notation 6.38993870 × 10^6

Prime Factorization of 638993870

Prime Factorization 2 × 5 × 79 × 808853

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 638993870
Product of the distinct prime numbers

The prime factorization of 638993870 is 2 × 5 × 79 × 808853. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 59, 78, 176, 281, 4955, 1681, 67328, 16007, 326118, 981991, 9155019, 8352951, 13987057, 88241583, 784528060, 593296825, 6615725799, 6703969082

Basic calculations (n = 638993870)

Multiplication

n×y
n×2 1277987740
n×3 1916981610
n×4 2555975480
n×5 3194969350

Division

n÷y
n÷2 319496935
n÷3 212997956.66667
n÷3 159748467.5
n÷5 127798774

Exponentiation

ny
n2 408313165897576900
n3 2.6090961004884E+26
n4 1.667196414453E+35
n5 1.0653282889215E+44

Nth Root

y√n
2√n 25278.328069712
3√n 861.32204720685
4√n 158.99159748148
5√n 57.68984052011

Divisors of 638993870

1, 2, 5, 10, 79, 158, 395, 790, 808853, 1617706, 4044265, 8088530, 63899387, 127798774, 319496935, 638993870

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 -638993869
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 638993870 can be divided by 16 positive divisors. The sum of these divisors (counting 638993870) is 1, the average is 0.0625.

Base conversion 638993870

Base System Value
2 Binary 100110000101100100010111001110
3 Ternary 1122112101020210122
4 Quaternary 212011210113032
5 Quinary 2302040300440
6 Senary 143223504542
8 Octal 4605442716
10 Decimal 638993870
12 Duodecimal 159bb8152
16 Hexadecimal 261645ce
20 Vigesimal 9jde4da
36 Base36 akfutq

Cryptographic Hash Functions

md5 4a6e80d17169709edec6aaa2e44293fe
sha1 bc261364f6dc60d428ae3a951a217a98ec9acd45
sha256 27b693790911e49a6a9487d02b6b8b68e533c9840e34c9f3ed23e51df4484fe2
sha512 567f4a3e9f91442d8a7ddf5cba31601b125d852945feeed2c9b03a9cf20629ee3e6baa6bf76106936974dc227eb40c748fd687079c8dc0263a5f4e9ba625b8ae
ripemd-160 25b5708fe7d3ddee00916f8cb72b8d3e9ba63da5

638993870 as geometric shapes

Circle

Radius = n
Diameter 1277987740
Circumference 4014916895.3618
Area 1.2827536423478E+18

Sphere

Radius = n
Volume 1.0928956189072E+27
Surface area 5.1310145693913E+18
Circumference 4014916895.3618

Square

Length = n
Perimeter 2555975480
Area 408313165897576900
Diagonal 903673797.22727

Cube

Length = n
Surface area 2449878995385461400
Volume 2.6090961004884E+26
Space diagonal 1106769848.5651

Equilateral Triangle

Length = n
Perimeter 1916981610
Area 1.7680478718348E+17
Altitude 553384924.28253

Triangular Pyramid

Length = n
Surface area 1.7680478718348E+17
Volume 3.0748492423713E+25
Height 301224599.07576