638860121 is an odd 9-digits composite number following 638860120
and preceding 638860122 . In scientific notation, it is written as 6.38860121 × 10^8.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 589366800 positive integers (up to 638860121) that are relatively prime to 638860121.
638860121 has 16 divisors, whose sum is 690475008
The reverse of 638860121 is 121068836
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
six hundred thirty-eight million eight hundred sixty thousand one hundred twenty-one
Scientific notation
6.38860121 × 10^8
Engineering notation
6.38860121 × 10^6
Prime Factorization
23 × 31 × 331 × 2707
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
638860121
Product of the distinct prime numbers
The prime factorization of 638860121 is 23 × 31 × 331 × 2707.
Since it has a total of 4 prime factors.
8 , 6 , 30 , 92 , 916 , 810 , 1844 , 5578 , 71719 , 87192 , 736890 , 855164 , 8457222 , 8654202 , 54990286 , 90240770 , 434909790 , 189956972 , 7092982326 , 5085786331
n×2
1277720242
n×3
1916580363
n×4
2555440484
n×5
3194300605
n÷2
319430060.5
n÷3
212953373.66667
n÷3
159715030.25
n÷5
127772024.2
n2
408142254204134641
n3
2.6074580990607E+26
n4
1.6658009966683E+35
n5
1.0642138262934E+44
2 √n
25275.68240424
3 √n
861.26194803821
4 √n
158.98327712134
5 √n
57.68742528424
1 , 23 , 31 , 331 , 713 , 2707 , 7613 , 10261 , 62261 , 83917 , 236003 , 896017 , 1930091 , 20608391 , 27776527 , 638860121
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
-638860120
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 638860121 can be divided by 16 positive divisors.
The sum of these divisors (counting 638860121) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110000101000011101101011001
3
Ternary
1122112010110022222
4
Quaternary
212011003231121
5
Quinary
2302022010441
6
Senary
143220553425
8
Octal
4605035531
10
Decimal
638860121
12
Duodecimal
159b52875
16
Hexadecimal
26143b59
20
Vigesimal
9jcha61
36
Base36
akczmh
md5
0c16c89cec8502162050697988e9231c
sha1
9bd92f251611a9cb798f2907556a08db71e7dbf5
sha256
3958aab440f80ba94b9744f47152595f22b6b0f57f84ef3649f97640dbd1a97f
sha512
c12542598be1ab2768ac08ce1947b7b97dc4cb63ce4cea824c4e676f05bc3d1e804f351ccc2b7501e7441765e7d096ee378115309d0c77c7181ba78a42531556
ripemd-160
6e79b701832956275818c2245a409b82bd15ae07
Diameter
1277720242
Circumference
4014076525.6102
Area
1.2822167074273E+18
Volume
1.0922094944736E+27
Surface area
5.1288668297091E+18
Circumference
4014076525.6102
Perimeter
2555440484
Area
408142254204134641
Diagonal
903484647.57752
Surface area
2448853525224807846
Volume
2.6074580990607E+26
Space diagonal
1106538188.5016
Perimeter
1916580363
Area
1.7673078024931E+17
Altitude
553269094.2508
Surface area
1.7673078024931E+17
Volume
3.072918839176E+25
Height
301161549.19251