638991690 (number)

638991690 is an even 9-digits composite number following 638991689 and preceding 638991691. In scientific notation, it is written as 6.38991690 × 10^8. The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors. There are 170309184 positive integers (up to 638991690) that are relatively prime to 638991690.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 6.38991690 × 10^8
Engineering notation 6.38991690 × 10^6

Prime Factorization of 638991690

Prime Factorization 2 × 3 × 5 × 2477 × 8599

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 638991690
Product of the distinct prime numbers

The prime factorization of 638991690 is 2 × 3 × 5 × 2477 × 8599. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 638991690)

Multiplication

n×y
n×2 1277983380
n×3 1916975070
n×4 2555966760
n×5 3194958450

Division

n÷y
n÷2 319495845
n÷3 212997230
n÷3 159747922.5
n÷5 127798338

Exponentiation

ny
n2 408310379889056100
n3 2.6090693968985E+26
n4 1.6671736632515E+35
n5 1.0653101166045E+44

Nth Root

y√n
2√n 25278.284949735
3√n 861.32106770648
4√n 158.99146187684
5√n 57.689801156971

Divisors of 638991690

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638991689
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638991690 can be divided by 32 positive divisors. The sum of these divisors (counting 638991690) is 1, the average is 0.03125.

Base conversion 638991690

Base System Value
2 Binary 100110000101100011110101001010
3 Ternary 1122112101010210220
4 Quaternary 212011203311022
5 Quinary 2302040213230
6 Senary 143223450510
8 Octal 4605436512
10 Decimal 638991690
12 Duodecimal 159bb6a36
16 Hexadecimal 26163d4a
20 Vigesimal 9jddj4a
36 Base36 akft56

Cryptographic Hash Functions

md5 915c7d6b08cdd2f2684f8cbb5ae17cef
sha1 a2354da20771326bdd68cc5756a588dcca1cee25
sha256 6ee4ae512421b4b16e0a11ab56b22cdf42702497e64e6006730d80fa103fb4ff
sha512 1d2367ee1967ed4d349843f823c08b8dcd96cba40c58c299ba67da9bfa8e7fd8c2f0a17d8b80ddb857ad5c61d02649c0520e9ed083b24d62d69c15227a5e4d1b
ripemd-160 b0a3ff1d8929c3ead54a842ca2a12b80ba487f28

638991690 as geometric shapes

Circle

Radius = n
Diameter 1277983380
Circumference 4014903198.0179
Area 1.2827448898439E+18

Sphere

Radius = n
Volume 1.0928844333336E+27
Surface area 5.1309795593757E+18
Circumference 4014903198.0179

Square

Length = n
Perimeter 2555966760
Area 408310379889056100
Diagonal 903670714.2417

Cube

Length = n
Surface area 2449862279334336600
Volume 2.6090693968985E+26
Space diagonal 1106766072.6943

Equilateral Triangle

Length = n
Perimeter 1916975070
Area 1.768035808064E+17
Altitude 553383036.34715

Triangular Pyramid

Length = n
Surface area 1.768035808064E+17
Volume 3.0748177718887E+25
Height 301223571.4139