638961340 is an even 9-digits composite number following 638961339
and preceding 638961341 . In scientific notation, it is written as 6.38961340 × 10^8.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 255584528 positive integers (up to 638961340) that are relatively prime to 638961340.
638961340 has 12 divisors, whose sum is 1341818856
The reverse of 638961340 is 043169836
Previous prime number is 5
Is Prime? no Number parity even Number length 9 Sum of Digits 40 Digital Root 4
Name
six hundred thirty-eight million nine hundred sixty-one thousand three hundred forty
Scientific notation
6.38961340 × 10^8
Engineering notation
6.38961340 × 10^6
Prime Factorization
2 × 2 × 5 × 31948067
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
319480670 Product of the distinct prime numbers
The prime factorization of 638961340 is 2 × 2 × 5 × 31948067.
Since it has a total of 4 prime factors.
5 , 5 , 80 , 67 , 364 , 641 , 2968 , 9641 , 65268 , 79843 , 806523 , 546495 , 382538 , 159273 , 71660197 , 74205195 , 147993634 , 965389974 , 5798623754 , 5915844427
n×2
1277922680
n×3
1916884020
n×4
2555845360
n×5
3194806700
n÷2
319480670
n÷3
212987113.33333
n÷3
159740335
n÷5
127792268
n2
408271594014595600
n3
2.608697647955E+26
n4
1.6668569447922E+35
n5
1.0650571470327E+44
2 √n25277.684624981
3 √n861.30743085293
4 √n158.98957395056
5 √n57.689253131462
1 , 2 , 4 , 5 , 10 , 20 , 31948067 , 63896134 , 127792268 , 159740335 , 319480670 , 638961340
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-638961339 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638961340 can be divided by 12 positive divisors.
The sum of these divisors (counting 638961340) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100110000101011100011010111100
3
Ternary
1122112022121011211
4
Quaternary
212011130122330
5
Quinary
2302033230330
6
Senary
143223054204
8
Octal
4605343274
10
Decimal
638961340
12
Duodecimal
159ba1364
16
Hexadecimal
2615c6bc
20
Vigesimal
9jda370
36
Base36
akf5q4
md5
462020e809bd5948593cdd71e2ce548b
sha1
fc6dc45b2d090c7fdc58753226a7a9f7bf124eb7
sha256
e8336272c8332d0e1009520d4c5eb3c5df8b591ef5fe0f7aa7df818d776cc0e7
sha512
ba6e9690fe6038a4607aeb84febdccf592cdb5d75a9eedb3571c4f262673ba7cb37353ae8b9a5309d15aeb68c45668626aa48150a633b2814d389578ea25ede6
ripemd-160
6cccea118ae8a3759a653f8263636d03f93df46d
Diameter
1277922680
Circumference
4014712503.3438
Area
1.2826230404256E+18
Volume
1.0927287155003E+27
Surface area
5.1304921617026E+18
Circumference
4014712503.3438
Perimeter
2555845360
Area
408271594014595600
Diagonal
903627792.86009
Surface area
2449629564087573600
Volume
2.608697647955E+26
Space diagonal
1106713504.9523
Perimeter
1916884020
Area
1.767867860301E+17
Altitude
553356752.47615
Surface area
1.767867860301E+17
Volume
3.0743796615573E+25
Height
301209264.2867