138728864 is an even 9-digits composite number following 138728863
and preceding 138728865 . In scientific notation, it is written as 1.38728864 × 10^8.
The sum of its digits is 47. It has a total of 7 prime factors and 24 positive divisors.
There are 69114816 positive integers (up to 138728864) that are relatively prime to 138728864.
138728864 has 24 divisors, whose sum is 274105440
The reverse of 138728864 is 468827831
Previous prime number is 283
Is Prime? no
Number parity even
Number length 9
Sum of Digits 47
Digital Root 2
Name
one hundred thirty-eight million seven hundred twenty-eight thousand eight hundred sixty-four
Scientific notation
1.38728864 × 10^8
Engineering notation
1.38728864 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 283 × 15319
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
8670554
Product of the distinct prime numbers
The prime factorization of 138728864 is 2 × 2 × 2 × 2 × 2 × 283 × 15319.
Since it has a total of 7 prime factors.
5 , 9 , 47 , 68 , 801 , 873 , 7923 , 3241 , 16209 , 66924 , 950762 , 372268 , 4221793 , 1082194 , 99092842 , 65335537 , 100964846 , 285408268 , 28110687 , 6863019712
n×2
277457728
n×3
416186592
n×4
554915456
n×5
693644320
n÷2
69364432
n÷3
46242954.666667
n÷3
34682216
n÷5
27745772.8
n2
19245697706730496
n3
2.6699337797421E+24
n4
3.7039688021885E+32
n5
5.1384738421905E+40
2 √n
11778.321781986
3 √n
517.673114075
4 √n
108.52797695519
5 √n
42.504348718804
1 , 2 , 4 , 8 , 16 , 32 , 283 , 566 , 1132 , 2264 , 4528 , 9056 , 15319 , 30638 , 61276 , 122552 , 245104 , 490208 , 4335277 , 8670554 , 17341108 , 34682216 , 69364432 , 138728864
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138728863
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138728864 can be divided by 24 positive divisors.
The sum of these divisors (counting 138728864) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1000010001001101010110100000
3
Ternary
100200001011020002
4
Quaternary
20101031112200
5
Quinary
241003310424
6
Senary
21433235132
8
Octal
1021152640
10
Decimal
138728864
12
Duodecimal
3a562aa8
16
Hexadecimal
844d5a0
20
Vigesimal
2371234
36
Base36
2alfvk
md5
cef44079909fcb77ac1a5d998e3f2e58
sha1
9e8c50bbf46b242fde6692a19ff138d1abfaef64
sha256
a6aaefabe2b6a48ca43b6cfb67a180dbe0de6bc641647cb0583fe0f40fe59a6a
sha512
766464762714072c484ee02609eb57590500ff6a36e28a92075c77f21890157d5df3635aad1851df0b33851ee211f537727c6eb78af4f2350429d6b880e37070
ripemd-160
068b0aa82bb639a2a669ac4f6cb67173366f4547
Diameter
277457728
Circumference
871659159.96652
Area
6.0462142528674E+16
Volume
1.1183792464012E+25
Surface area
2.418485701147E+17
Circumference
871659159.96652
Perimeter
554915456
Area
19245697706730496
Diagonal
196192240.96141
Surface area
115474186240382976
Volume
2.6699337797421E+24
Space diagonal
240285440.92431
Perimeter
416186592
Area
8.3336315637923E+15
Altitude
120142720.46216
Surface area
8.3336315637923E+15
Volume
3.1465471349578E+23
Height
65397413.653804