639021489 is an odd 9-digits composite number following 639021488
and preceding 639021490 . In scientific notation, it is written as 6.39021489 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 407491920 positive integers (up to 639021489) that are relatively prime to 639021489.
639021489 has 8 divisors, whose sum is 889073472
The reverse of 639021489 is 984120936
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
six hundred thirty-nine million twenty-one thousand four hundred eighty-nine
Scientific notation
6.39021489 × 10^8
Engineering notation
6.39021489 × 10^6
Prime Factorization
3 × 23 × 9261181
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
639021489
Product of the distinct prime numbers
The prime factorization of 639021489 is 3 × 23 × 9261181.
Since it has a total of 3 prime factors.
2 , 3 , 9 , 20 , 620 , 755 , 4880 , 7313 , 70273 , 42446 , 163767 , 878590 , 2588158 , 385086 , 37255982 , 84271220 , 874352776 , 214672701 , 7905041672 , 4031760883
n×2
1278042978
n×3
1917064467
n×4
2556085956
n×5
3195107445
n÷2
319510744.5
n÷3
213007163
n÷3
159755372.25
n÷5
127804297.8
n2
408348463403777121
n3
2.6094344311514E+26
n4
1.6674846756423E+35
n5
1.0655585403136E+44
2 √n
25278.874361807
3 √n
861.33445656476
4 √n
158.99331546265
5 √n
57.690339212894
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
-639021488
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 639021489 can be divided by 8 positive divisors.
The sum of these divisors (counting 639021489) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110000101101011000110110001
3
Ternary
1122112102122200120
4
Quaternary
212011223012301
5
Quinary
2302042141424
6
Senary
143224240453
8
Octal
4605530661
10
Decimal
639021489
12
Duodecimal
15a010129
16
Hexadecimal
2616b1b1
20
Vigesimal
9jdhde9
36
Base36
akgg4x
md5
0c05b4d83a1f688c2a3cba30e5ef7480
sha1
bbb12999f8821645a4163f7aa2e15411d8acc277
sha256
d51866eebb15e72f4ae8859bd79aef9c5975c177d48987008a5c393d15dc1dd2
sha512
44985eec43ca6b39350b2a03e08187ad16cd7171ea22634f1ae0635a05977aca91051e281a3c8e5483bc902fb6c74ca59764bdd393ae0759293effe4243c2531
ripemd-160
446683562d07fb0006ac0b328096861a854707a3
Diameter
1278042978
Circumference
4015090430.6568
Area
1.282864532734E+18
Volume
1.0930373385239E+27
Surface area
5.1314581309359E+18
Circumference
4015090430.6568
Perimeter
2556085956
Area
408348463403777121
Diagonal
903712856.39165
Surface area
2450090780422662726
Volume
2.6094344311514E+26
Space diagonal
1106817686.0763
Perimeter
1917064467
Area
1.7682007145201E+17
Altitude
553408843.03816
Surface area
1.7682007145201E+17
Volume
3.0752479688814E+25
Height
301237618.79722