138946 is an even 6-digits composite number following 138945
and preceding 138947 . In scientific notation, it is written as 1.38946 × 10^5.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 69472 positive integers (up to 138946) that are relatively prime to 138946.
138946 has 4 divisors, whose sum is 208422
The reverse of 138946 is 649831
Previous prime number is 2
Is Prime? no
Number parity even
Number length 6
Sum of Digits 31
Digital Root 4
Name
one hundred thirty-eight thousand nine hundred forty-six
Scientific notation
1.38946 × 10^5
Engineering notation
1.38946 × 10^3
Prime Factorization
2 × 69473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
138946
Product of the distinct prime numbers
The prime factorization of 138946 is 2 × 69473.
Since it has a total of 2 prime factors.
7 , 10 , 51 , 6 , 179 , 757 , 2845 , 5681 , 10782 , 95461 , 967098 , 341044 , 5723570 , 4548651 , 67231743 , 21345431 , 48211465 , 580984784 , 3811635099 , 9255276168
n×2
277892
n×3
416838
n×4
555784
n×5
694730
n÷2
69473
n÷3
46315.333333333
n÷3
34736.5
n÷5
27789.2
n2
19305990916
n3
2682490213814536
n4
3.7272128524867E+20
n5
5.1788131700162E+25
2 √n
372.75461097081
3 √n
51.794305759882
4 √n
19.306853989472
5 √n
10.679949760891
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
-138945
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 138946 can be divided by 4 positive divisors.
The sum of these divisors (counting 138946) is 1, the average is 0.25.
Base
System
Value
2
Binary
100001111011000010
3
Ternary
21001121011
4
Quaternary
201323002
5
Quinary
13421241
6
Senary
2551134
8
Octal
417302
10
Decimal
138946
12
Duodecimal
684aa
16
Hexadecimal
21ec2
20
Vigesimal
h776
36
Base36
2z7m
md5
574ce7384b4dc90626d4c3cea9d61b9a
sha1
67b0dc41b1890648aa72042a021a8c87327d48a6
sha256
9c590cbd4fad825fdeb4624b2eaf5865e17d27d06df1569835c2c5a71b969ea0
sha512
38777a10859dc78095e4bc19557a5dc4f1346ed1d8289e81101fd2e2f8630ec5977cdd06b804928780b362e1eff1481a14f6291870ffa39df5f6967659b08e93
ripemd-160
e9ed934e07e6af1d5f165ab7d17b4b5dd51375ab
Diameter
277892
Circumference
873023.46569137
Area
60651559231.977
Volume
1.1236388732062E+16
Surface area
242606236927.91
Circumference
873023.46569137
Perimeter
555784
Area
19305990916
Diagonal
196499.31763749
Surface area
115835945496
Volume
2682490213814536
Space diagonal
240661.53150847
Perimeter
416838
Area
8359739289.2438
Altitude
120330.76575423
Surface area
8359739289.2438
Volume
3.1613450344247E+14
Height
65499.772545831