149739721 is an odd 9-digits composite number following 149739720
and preceding 149739722 . In scientific notation, it is written as 1.49739721 × 10^8.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 149660944 positive integers (up to 149739721) that are relatively prime to 149739721.
149739721 has 4 divisors, whose sum is 149818500
The reverse of 149739721 is 127937941
Previous prime number is 1949
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 43
Digital Root 7
Name
one hundred forty-nine million seven hundred thirty-nine thousand seven hundred twenty-one
Scientific notation
1.49739721 × 10^8
Engineering notation
1.49739721 × 10^6
Prime Factorization
1949 × 76829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
149739721
Product of the distinct prime numbers
The prime factorization of 149739721 is 1949 × 76829.
Since it has a total of 2 prime factors.
8 , 7 , 66 , 70 , 290 , 424 , 6981 , 7210 , 38351 , 81068 , 292747 , 295996 , 6068426 , 14131 , 31511814 , 52974893 , 541327010 , 181127124 , 6061948571 , 2932385819
n×2
299479442
n×3
449219163
n×4
598958884
n×5
748698605
n÷2
74869860.5
n÷3
49913240.333333
n÷3
37434930.25
n÷5
29947944.2
n2
22421984045157841
n3
3.3574616351884E+24
n4
5.0274536852131E+32
n5
7.5280951216424E+40
2 √n
12236.818254759
3 √n
531.02178698926
4 √n
110.62015302267
5 √n
43.158605519353
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
-149739720
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 149739721 can be divided by 4 positive divisors.
The sum of these divisors (counting 149739721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111011001101100011001001
3
Ternary
101102202120021121
4
Quaternary
20323031203021
5
Quinary
301313132341
6
Senary
22505235241
8
Octal
1073154311
10
Decimal
149739721
12
Duodecimal
42192b21
16
Hexadecimal
8ecd8c9
20
Vigesimal
26fh961
36
Base36
2h5fwp
md5
8162667e4342bdfd67bac5798ae4a7a7
sha1
fc8126fa5574e68ea269e942e55647c310193c53
sha256
beb44f65f9404816365d328f28c5eed9156cc9b120c89857e1df31e6ef9e914a
sha512
6047f2b5f780a787e7cc311cdd053328c3c230aeba09853020f254043f44938ce74b856d7360e2f8e614a7784d06bfff29e49a08895fa6422aed2f8aeed73dd7
ripemd-160
39cec5e62f42f4019efab7a7069661dfd4a926c9
Diameter
299479442
Circumference
940842414.88837
Area
7.0440740355175E+16
Volume
1.4063702410423E+25
Surface area
2.817629614207E+17
Circumference
940842414.88837
Perimeter
598958884
Area
22421984045157841
Diagonal
211763944.26416
Surface area
134531904270947046
Volume
3.3574616351884E+24
Space diagonal
259356804.68319
Perimeter
449219163
Area
9.709003893178E+15
Altitude
129678402.34159
Surface area
9.709003893178E+15
Volume
3.9568064830256E+23
Height
70587981.421388