638973887 is an odd 9-digits prime number following 638973886
and preceding 638973888 . In scientific notation, it is written as 6.38973887 × 10^8.
The sum of its digits is 59. It has a total of 1 prime factors and 2 positive divisors.
There are 638973886 positive integers (up to 638973887) that are relatively prime to 638973887.
638973887 has 2 divisors, whose sum is 638973888
The reverse of 638973887 is 788379836
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 59
Digital Root 5
Name
six hundred thirty-eight million nine hundred seventy-three thousand eight hundred eighty-seven
Scientific notation
6.38973887 × 10^8
Engineering notation
6.38973887 × 10^6
Prime Factorization
638973887
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
638973887
Product of the distinct prime numbers
The prime factorization of 638973887 is 638973887.
Since it has a total of 1 prime factors.
10 , 1 , 9 , 3 , 596 , 109 , 4032 , 2799 , 23620 , 53880 , 881520 , 491876 , 90166 , 9028617 , 77320058 , 46579659 , 289646043 , 893905790 , 1244709225 , 7945117796
n×2
1277947774
n×3
1916921661
n×4
2555895548
n×5
3194869435
n÷2
319486943.5
n÷3
212991295.66667
n÷3
159743471.75
n÷5
127794777.4
n2
408287628267888769
n3
2.6088513284834E+26
n4
1.6669878739662E+35
n5
1.06516172141E+44
2 √n
25277.932807095
3 √n
861.31306851984
4 √n
158.99035444672
5 √n
57.68947969333
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
638973888
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
319486944
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
25277.932826875
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.99999999687
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638973887 can be divided by 2 positive divisors.
The sum of these divisors (counting 638973887) is 638973888, the average is 319486944.
Base
System
Value
2
Binary
100110000101011111011110111111
3
Ternary
1122112100020101112
4
Quaternary
212011133132333
5
Quinary
2302034131022
6
Senary
143223232235
8
Octal
4605373677
10
Decimal
638973887
12
Duodecimal
159ba867b
16
Hexadecimal
2615f7bf
20
Vigesimal
9jdbee7
36
Base36
akffen
md5
2c99033aa4a8cb1ca508594f71bfd3d5
sha1
c67c568cd980c42cb8f186b569b1697717a14866
sha256
283b0e160c17d7a60e0f04b9b8eae7e7d91d46272c30ba70face413a2acc1324
sha512
9400233b09b9c18bbf57facb43c2d8f2ad934fce9a6c1b3a30e9c52f5c51a167a508890d52fce6810f1883fc2c357b68676013a85eb34e47bd1a84f40881e0c9
ripemd-160
8426e8fced04b5e82440ee03c0367d99749039de
Diameter
1277947774
Circumference
4014791338.4698
Area
1.282673413518E+18
Volume
1.0927930890495E+27
Surface area
5.130693654072E+18
Circumference
4014791338.4698
Perimeter
2555895548
Area
408287628267888769
Diagonal
903645536.99765
Surface area
2449725769607332614
Volume
2.6088513284834E+26
Space diagonal
1106735236.9938
Perimeter
1916921661
Area
1.7679372906544E+17
Altitude
553367618.49689
Surface area
1.7679372906544E+17
Volume
3.074560775797E+25
Height
301215178.99922