138757981 is an odd 9-digits composite number following 138757980
and preceding 138757982 . In scientific notation, it is written as 1.38757981 × 10^8.
The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors.
There are 131673600 positive integers (up to 138757981) that are relatively prime to 138757981.
138757981 has 8 divisors, whose sum is 140362200
The reverse of 138757981 is 189757831
Previous prime number is 2501
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
one hundred thirty-eight million seven hundred fifty-seven thousand nine hundred eighty-one
Scientific notation
1.38757981 × 10^8
Engineering notation
1.38757981 × 10^6
Prime Factorization
109 × 2501 × 509
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
138757981
Product of the distinct prime numbers
The prime factorization of 138757981 is 109 × 2501 × 509.
Since it has a total of 3 prime factors.
1 , 1 , 5 , 67 , 161 , 841 , 9664 , 5021 , 93870 , 4683 , 515224 , 22117 , 5316279 , 3145783 , 86877693 , 19587374 , 684438194 , 410378182 , 7943602515 , 8220626769
n×2
277515962
n×3
416273943
n×4
555031924
n×5
693789905
n÷2
69378990.5
n÷3
46252660.333333
n÷3
34689495.25
n÷5
27751596.2
n2
19253777291196361
n3
2.6716152635501E+24
n4
3.7070793997899E+32
n5
5.1438685292154E+40
2 √n
11779.557759101
3 √n
517.70932868148
4 √n
108.5336710846
5 √n
42.506132767484
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-138757980
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 138757981 can be divided by 8 positive divisors.
The sum of these divisors (counting 138757981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000010001010100011101011101
3
Ternary
100200002122011111
4
Quaternary
20101110131131
5
Quinary
241010223411
6
Senary
21434022021
8
Octal
1021243535
10
Decimal
138757981
12
Duodecimal
3a577911
16
Hexadecimal
845475d
20
Vigesimal
2374ej1
36
Base36
2am2cd
md5
d6f7ef3d4fac31ce52b04032d117b783
sha1
fa655d7aae9851eb1f6e06b2fdfbb431f880c682
sha256
6de89fce07789ce06a014bfe7e6ed4c6de7a24cfa2fb8d0009d7533f172ed20f
sha512
cd95a575306e40174e17415d8d6d424aaf4e481fa7d964e97eb8da9fa1e8eab122199ae454b7e083f2a23ebcc20266a4057701f70a03d12b6e53361ca006cf3b
ripemd-160
2fa3e05033592a759a8630b2f013f2d0d59595a2
Diameter
277515962
Circumference
871842107.4731
Area
6.0487525291876E+16
Volume
1.1190835846916E+25
Surface area
2.4195010116751E+17
Circumference
871842107.4731
Perimeter
555031924
Area
19253777291196361
Diagonal
196233418.61771
Surface area
115522663747178166
Volume
2.6716152635501E+24
Space diagonal
240335873.04768
Perimeter
416273943
Area
8.337130126492E+15
Altitude
120167936.52384
Surface area
8.337130126492E+15
Volume
3.1485287826296E+23
Height
65411139.539236