638520091 is an odd 9-digits composite number following 638520090
and preceding 638520092 . In scientific notation, it is written as 6.38520091 × 10^8.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 580472800 positive integers (up to 638520091) that are relatively prime to 638520091.
638520091 has 4 divisors, whose sum is 696567384
The reverse of 638520091 is 190025836
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 34
Digital Root 7
Name
six hundred thirty-eight million five hundred twenty thousand ninety-one
Scientific notation
6.38520091 × 10^8
Engineering notation
6.38520091 × 10^6
Prime Factorization
11 × 58047281
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
638520091
Product of the distinct prime numbers
The prime factorization of 638520091 is 11 × 58047281.
Since it has a total of 2 prime factors.
7 , 9 , 98 , 58 , 96 , 618 , 436 , 8821 , 52172 , 22760 , 100564 , 652593 , 3503286 , 8806689 , 97175952 , 51107977 , 816260415 , 793522102 , 4829327722 , 3753422611
n×2
1277040182
n×3
1915560273
n×4
2554080364
n×5
3192600455
n÷2
319260045.5
n÷3
212840030.33333
n÷3
159630022.75
n÷5
127704018.2
n2
407707906610648281
n3
2.6032968963045E+26
n4
1.6622573711284E+35
n5
1.0613847278783E+44
2 √n
25268.955083264
3 √n
861.10912017977
4 √n
158.96211839072
5 √n
57.68128320963
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-638520090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 638520091 can be divided by 4 positive divisors.
The sum of these divisors (counting 638520091) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110000011110000101100011011
3
Ternary
1122111111011220021
4
Quaternary
212003300230123
5
Quinary
2301430120331
6
Senary
143205411311
8
Octal
4603605433
10
Decimal
638520091
12
Duodecimal
159a09b37
16
Hexadecimal
260f0b1b
20
Vigesimal
9jaf04b
36
Base36
ak5p97
md5
97db0cf11d5960317aaa390dd9658ed2
sha1
a2f01dcadcb761476fdbd87f36b9d6ddbfb4c29c
sha256
c15b9b4fbd0a25ac21cdc9886545884f3f6e0a497abce7042ab55f122beba358
sha512
558088e301cf9d2b7e678701c4e6882246d9e08bbc3e577b80e3fad556a98b4ac3426293b780a17b73345f203714a774feb4072301694e496c8ea57d544ef6d3
ripemd-160
84474c63a226b80bfa50f81b514c6affe1781c29
Diameter
1277040182
Circumference
4011940054.1102
Area
1.2808521642185E+18
Volume
1.0904664539391E+27
Surface area
5.1234086568739E+18
Circumference
4011940054.1102
Perimeter
2554080364
Area
407707906610648281
Diagonal
903003772.5399
Surface area
2446247439663889686
Volume
2.6032968963045E+26
Space diagonal
1105949239.2655
Perimeter
1915560273
Area
1.765427022243E+17
Altitude
552974619.63275
Surface area
1.765427022243E+17
Volume
3.068014814698E+25
Height
301001257.5133