138721609 is an odd 9-digits composite number following 138721608
and preceding 138721610 . In scientific notation, it is written as 1.38721609 × 10^8.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 128050704 positive integers (up to 138721609) that are relatively prime to 138721609.
138721609 has 4 divisors, whose sum is 149392516
The reverse of 138721609 is 906127831
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 37
Digital Root 1
Name
one hundred thirty-eight million seven hundred twenty-one thousand six hundred nine
Scientific notation
1.38721609 × 10^8
Engineering notation
1.38721609 × 10^6
Prime Factorization
13 × 10670893
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138721609
Product of the distinct prime numbers
The prime factorization of 138721609 is 13 × 10670893.
Since it has a total of 2 prime factors.
5 , 10 , 47 , 37 , 971 , 588 , 576 , 1566 , 35590 , 14227 , 952990 , 179720 , 145036 , 9603756 , 48840178 , 23411014 , 406486620 , 783270051 , 6796178600 , 8573910271
n×2
277443218
n×3
416164827
n×4
554886436
n×5
693608045
n÷2
69360804.5
n÷3
46240536.333333
n÷3
34680402.25
n÷5
27744321.8
n2
19243684803548881
n3
2.6695149190371E+24
n4
3.7031940481834E+32
n5
5.1371303680322E+40
2 √n
11778.013796901
3 √n
517.66408979602
4 √n
108.52655802568
5 √n
42.503904145855
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
-138721608
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 138721609 can be divided by 4 positive divisors.
The sum of these divisors (counting 138721609) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000010001001011100101001001
3
Ternary
100200000210021101
4
Quaternary
20101023211021
5
Quinary
241003042414
6
Senary
21433141401
8
Octal
1021134511
10
Decimal
138721609
12
Duodecimal
3a55a861
16
Hexadecimal
844b949
20
Vigesimal
2370409
36
Base36
2alaa1
md5
d3f75c402c5c1a64732d406e48d1c422
sha1
7e7c79238453ff4111db8f22d1abd699c80aaaec
sha256
a6a1f5986a29a048e3f372f6a3a3cd2914df750eaa2f9b8150fc517ee22ef745
sha512
9760103eb165d8acc295f334061ffc5477de932ab004801a87e76e25b0f5a171aff0355de7e9eae379400230ce0404d9bc60e2340c937732d2c04ef81dfd3772
ripemd-160
77511642e3278f025ec989e3e8fa03f7757af584
Diameter
277443218
Circumference
871613575.45711
Area
6.0455818806827E+16
Volume
1.1182037944394E+25
Surface area
2.4182327522731E+17
Circumference
871613575.45711
Perimeter
554886436
Area
19243684803548881
Diagonal
196181980.84202
Surface area
115462108821293286
Volume
2.6695149190371E+24
Space diagonal
240272874.8957
Perimeter
416164827
Area
8.3327599511469E+15
Altitude
120136437.44785
Surface area
8.3327599511469E+15
Volume
3.146053502883E+23
Height
65393993.614006