638406939 (number)

638406939 is an odd 9-digits composite number following 638406938 and preceding 638406940. In scientific notation, it is written as 6.38406939 × 10^8. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 415706760 positive integers (up to 638406939) that are relatively prime to 638406939.

Interesting facts

Basic properties

Name

Name six hundred thirty-eight million four hundred six thousand nine hundred thirty-nine

Notation

Scientific notation 6.38406939 × 10^8
Engineering notation 6.38406939 × 10^6

Prime Factorization of 638406939

Prime Factorization 3 × 43 × 4948891

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 638406939
Product of the distinct prime numbers

The prime factorization of 638406939 is 3 × 43 × 4948891. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 52, 73, 315, 586, 9859, 5984, 83180, 88399, 921718, 136375, 8926953, 9004471, 87770581, 35539125, 649395005, 761906790, 7850549346, 32274213

Basic calculations (n = 638406939)

Multiplication

n×y
n×2 1276813878
n×3 1915220817
n×4 2553627756
n×5 3192034695

Division

n÷y
n÷2 319203469.5
n÷3 212802313
n÷3 159601734.75
n÷5 127681387.8

Exponentiation

ny
n2 407563419763349721
n3 2.6019131525949E+26
n4 1.661079411292E+35
n5 1.0604446223988E+44

Nth Root

y√n
2√n 25266.716031174
3√n 861.05825152445
4√n 158.95507551247
5√n 57.67923872729

Divisors of 638406939

1, 3, 43, 129, 4948891, 14846673, 212802313, 638406939

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -638406938
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 638406939 can be divided by 8 positive divisors. The sum of these divisors (counting 638406939) is 1, the average is 0.125.

Base conversion 638406939

Base System Value
2 Binary 100110000011010101000100011011
3 Ternary 1122111021102200110
4 Quaternary 212003111010123
5 Quinary 2301413010224
6 Senary 143203135403
8 Octal 4603250433
10 Decimal 638406939
12 Duodecimal 159974563
16 Hexadecimal 260d511b
20 Vigesimal 9ja0h6j
36 Base36 ak39y3

Cryptographic Hash Functions

md5 98e3239c38251f2cf208c1fcb3d8c05f
sha1 08c9d0daea96bb89ebfdc88e254860712cf0dede
sha256 2930d630c84ef2e989506bffdb200960bef7a5338bfeff10a6321f266468832d
sha512 d96897962a1880dfbc94e37aa135d84b9db9b43174ee26a5f2202c88bf2a64d10d56e78d1ae6d21ed2f37b319dda05b276c22c874986600986d7c4bdd0d6aff8
ripemd-160 7f3e28ff3f92df3448666f5c88e1fc9dc9487aac

638406939 as geometric shapes

Circle

Radius = n
Diameter 1276813878
Circumference 4011229099.1263
Area 1.2803982454005E+18

Sphere

Radius = n
Volume 1.0898868327294E+27
Surface area 5.1215929816019E+18
Circumference 4011229099.1263

Square

Length = n
Perimeter 2553627756
Area 407563419763349721
Diagonal 902843751.44689

Cube

Length = n
Surface area 2445380518580098326
Volume 2.6019131525949E+26
Space diagonal 1105753254.2525

Equilateral Triangle

Length = n
Perimeter 1915220817
Area 1.7648013758416E+17
Altitude 552876627.12626

Triangular Pyramid

Length = n
Surface area 1.7648013758416E+17
Volume 3.0663840570972E+25
Height 300947917.14896