157985909 is an odd 9-digits prime number following 157985908
and preceding 157985910 . In scientific notation, it is written as 1.57985909 × 10^8.
The sum of its digits is 53. It has a total of 1 prime factors and 2 positive divisors.
There are 157985908 positive integers (up to 157985909) that are relatively prime to 157985909.
157985909 has 2 divisors, whose sum is 157985910
The reverse of 157985909 is 909589751
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 53 Digital Root 8
Name
one hundred fifty-seven million nine hundred eighty-five thousand nine hundred nine
Scientific notation
1.57985909 × 10^8
Engineering notation
1.57985909 × 10^6
Prime Factorization
157985909
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
157985909 Product of the distinct prime numbers
The prime factorization of 157985909 is 157985909.
Since it has a total of 1 prime factors.
2 , 3 , 49 , 74 , 849 , 585 , 5321 , 6326 , 97506 , 55265 , 710893 , 167847 , 5178321 , 9352408 , 71340900 , 17315979 , 432968343 , 271821811 , 4200508445 , 2562729929
n×2
315971818
n×3
473957727
n×4
631943636
n×5
789929545
n÷2
78992954.5
n÷3
52661969.666667
n÷3
39496477.25
n÷5
31597181.8
n2
24959547442556281
n3
3.9432567909409E+24
n4
6.2297900853722E+32
n5
9.8421904951671E+40
2 √n12569.244567594
3 √n540.5959458653
4 √n112.11264231831
5 √n43.623817785995
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
157985910 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
78992955 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12569.244607374 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999873406 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157985909 can be divided by 2 positive divisors.
The sum of these divisors (counting 157985909) is 157985910, the average is 78992955.
Base
System
Value
2
Binary
1001011010101010110001110101
3
Ternary
102000021111220222
4
Quaternary
21122222301311
5
Quinary
310421022114
6
Senary
23402104125
8
Octal
1132526165
10
Decimal
157985909
12
Duodecimal
44aab045
16
Hexadecimal
96aac75
20
Vigesimal
29784f9
36
Base36
2m26ph
md5
4761130494ff05cd3e90b1f1d9b0fa28
sha1
a6e06f2f83067e7cff5e27483aacf8f9a399c650
sha256
63f490299730c06ca98bb8bea7a5099d8a373b810bcabd67d51821a2db29d95b
sha512
33c6703785e58b65521ddc5b3153d6d286628da9b29945e2bb0c8e20d1adda12cbdfa51a9ed9fe02624ca91f4712c6288bfb77cab41b91b14ae0cbf7fa8f9d1f
ripemd-160
d94c9923ede3477669eb288fced23de56f980891
Diameter
315971818
Circumference
992654742.17021
Area
7.8412730882461E+16
Volume
1.6517475420851E+25
Surface area
3.1365092352984E+17
Circumference
992654742.17021
Perimeter
631943636
Area
24959547442556281
Diagonal
223425815.17164
Surface area
149757284655337686
Volume
3.9432567909409E+24
Space diagonal
273639621.26795
Perimeter
473957727
Area
1.0807801076108E+16
Altitude
136819810.63398
Surface area
1.0807801076108E+16
Volume
4.6471726947237E+23
Height
74475271.723881