639406902 is an even 9-digits composite number following 639406901
and preceding 639406903 . In scientific notation, it is written as 6.39406902 × 10^8.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 211066152 positive integers (up to 639406902) that are relatively prime to 639406902.
639406902 has 16 divisors, whose sum is 1291230720
The reverse of 639406902 is 209604936
Previous prime number is 103
Is Prime? no
Number parity even
Number length 9
Sum of Digits 39
Digital Root 3
Name
six hundred thirty-nine million four hundred six thousand nine hundred two
Scientific notation
6.39406902 × 10^8
Engineering notation
6.39406902 × 10^6
Prime Factorization
2 × 3 × 103 × 1034639
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
639406902
Product of the distinct prime numbers
The prime factorization of 639406902 is 2 × 3 × 103 × 1034639.
Since it has a total of 4 prime factors.
4 , 2 , 91 , 27 , 278 , 536 , 6494 , 5202 , 80326 , 35724 , 665997 , 375625 , 7090064 , 9101317 , 75493394 , 33685782 , 232033544 , 182270687 , 8367378767 , 6839224779
n×2
1278813804
n×3
1918220706
n×4
2557627608
n×5
3197034510
n÷2
319703451
n÷3
213135634
n÷3
159851725.5
n÷5
127881380.4
n2
408841186325237604
n3
2.6141587635822E+26
n4
1.6715111563583E+35
n5
1.0687757701455E+44
2 √n
25286.496435845
3 √n
861.50758729913
4 √n
159.01728345009
5 √n
57.697296488944
1 , 2 , 3 , 6 , 103 , 206 , 309 , 618 , 1034639 , 2069278 , 3103917 , 6207834 , 106567817 , 213135634 , 319703451 , 639406902
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
-639406901
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 639406902 can be divided by 16 positive divisors.
The sum of these divisors (counting 639406902) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000111001001001100110110
3
Ternary
1122120011020101010
4
Quaternary
212013021030312
5
Quinary
2302142010102
6
Senary
143240413050
8
Octal
4607111466
10
Decimal
639406902
12
Duodecimal
15a177186
16
Hexadecimal
261c9336
20
Vigesimal
9jg5h52
36
Base36
akopiu
md5
ccf9dff0e96df12a513df56c44f8df0f
sha1
562027a835f25dd879f5afd807aa676092fa1189
sha256
8807e06ba111e2ddf35271189a0d1e8e8d8371f56947f079464657798e07e265
sha512
5991e548397c6d1a90838235bb427ee7f77d8da1b6bdcec2f24ecd53018a63d06ad48daac99bc6ec888ac89abafe06d723f49eebf6abcc3d59591fe745f4e7d4
ripemd-160
54e987f05ca766733ea094a48aa2b503bd8226a2
Diameter
1278813804
Circumference
4017512051.9556
Area
1.2844124674443E+18
Volume
1.095016262265E+27
Surface area
5.1376498697772E+18
Circumference
4017512051.9556
Perimeter
2557627608
Area
408841186325237604
Diagonal
904257912.68336
Surface area
2453047117951425624
Volume
2.6141587635822E+26
Space diagonal
1107485240.9742
Perimeter
1918220706
Area
1.7703342673551E+17
Altitude
553742620.48711
Surface area
1.7703342673551E+17
Volume
3.0808156480454E+25
Height
301419304.22779