138538778 is an even 9-digits composite number following 138538777
and preceding 138538779 . In scientific notation, it is written as 1.38538778 × 10^8.
The sum of its digits is 50. It has a total of 4 prime factors and 12 positive divisors.
There are 59373720 positive integers (up to 138538778) that are relatively prime to 138538778.
138538778 has 12 divisors, whose sum is 241736202
The reverse of 138538778 is 877835831
Previous prime number is 7
Is Prime? no
Number parity even
Number length 9
Sum of Digits 50
Digital Root 5
Name
one hundred thirty-eight million five hundred thirty-eight thousand seven hundred seventy-eight
Scientific notation
1.38538778 × 10^8
Engineering notation
1.38538778 × 10^6
Prime Factorization
2 × 7 × 7 × 1413661
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19791254
Product of the distinct prime numbers
The prime factorization of 138538778 is 2 × 7 × 7 × 1413661.
Since it has a total of 4 prime factors.
7 , 10 , 68 , 75 , 610 , 427 , 7199 , 9508 , 84672 , 53447 , 839680 , 460182 , 7600364 , 5873684 , 62618639 , 50823487 , 785508991 , 230797361 , 5052693379 , 8945307460
n×2
277077556
n×3
415616334
n×4
554155112
n×5
692693890
n÷2
69269389
n÷3
46179592.666667
n÷3
34634694.5
n÷5
27707755.6
n2
19192993009733284
n3
2.658973797731E+24
n4
3.6837098067167E+32
n5
5.1033665512915E+40
2 √n
11770.249699985
3 √n
517.43656779674
4 √n
108.49078163598
5 √n
42.492694455607
1 , 2 , 7 , 14 , 49 , 98 , 1413661 , 2827322 , 9895627 , 19791254 , 69269389 , 138538778
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
-138538777
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 138538778 can be divided by 12 positive divisors.
The sum of these divisors (counting 138538778) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1000010000011110111100011010
3
Ternary
100122200111110212
4
Quaternary
20100132330122
5
Quinary
240431220103
6
Senary
21425211122
8
Octal
1020367432
10
Decimal
138538778
12
Duodecimal
3a490aa2
16
Hexadecimal
841ef1a
20
Vigesimal
235h6ii
36
Base36
2ahd7e
md5
dba2c8f7a2de3f3f9be60f10539c6e5e
sha1
f83bf62d1a3b34974ccddbfb231bfc6e79bba1f3
sha256
6df72c6cd02ab3098bd1498b617f962495a77a542f29b79448839d09d68b6da4
sha512
dbbc14c8d91a083433e44f8525859f647e5f871281ddcd88354de413c245cb42b680c37b6197cc7cf7fcceb3162176559621bd08897fe0ac2e77c50f2cf9552d
ripemd-160
9568e8354e244bbb23242103501feda5732dd19f
Diameter
277077556
Circumference
870464814.40421
Area
6.0296565839778E+16
Volume
1.1137883398719E+25
Surface area
2.4118626335911E+17
Circumference
870464814.40421
Perimeter
554155112
Area
19192993009733284
Diagonal
195923418.7622
Surface area
115157958058399704
Volume
2.658973797731E+24
Space diagonal
239956202.31451
Perimeter
415616334
Area
8.3108097605431E+15
Altitude
119978101.15725
Surface area
8.3108097605431E+15
Volume
3.1336306722882E+23
Height
65307806.254065