161844989 is an odd 9-digits prime number following 161844988
and preceding 161844990 . In scientific notation, it is written as 1.61844989 × 10^8.
The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors.
There are 161844988 positive integers (up to 161844989) that are relatively prime to 161844989.
161844989 has 2 divisors, whose sum is 161844990
The reverse of 161844989 is 989448161
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 50 Digital Root 5
Name
one hundred sixty-one million eight hundred forty-four thousand nine hundred eighty-nine
Scientific notation
1.61844989 × 10^8
Engineering notation
1.61844989 × 10^6
Prime Factorization
161844989
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
161844989 Product of the distinct prime numbers
The prime factorization of 161844989 is 161844989.
Since it has a total of 1 prime factors.
8 , 3 , 18 , 53 , 755 , 333 , 2185 , 9396 , 18279 , 67173 , 969017 , 130754 , 8889101 , 5929022 , 13661798 , 28947059 , 684556490 , 580941823 , 4243414825 , 7550322907
n×2
323689978
n×3
485534967
n×4
647379956
n×5
809224945
n÷2
80922494.5
n÷3
53948329.666667
n÷3
40461247.25
n÷5
32368997.8
n2
26193800464410121
n3
4.2393353480307E+24
n4
6.8611518276933E+32
n5
1.1104430420804E+41
2 √n12721.831196805
3 √n544.96224972089
4 √n112.79109537905
5 √n43.834882977261
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
161844990 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
80922495 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12721.831236107 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999876425 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161844989 can be divided by 2 positive divisors.
The sum of these divisors (counting 161844989) is 161844990, the average is 80922495.
Base
System
Value
2
Binary
1001101001011000111011111101
3
Ternary
102021112120120212
4
Quaternary
21221120323331
5
Quinary
312413014424
6
Senary
24020522205
8
Octal
1151307375
10
Decimal
161844989
12
Duodecimal
46250365
16
Hexadecimal
9a58efd
20
Vigesimal
2abac99
36
Base36
2ocwe5
md5
31d8835ed4981b1924c9fa20a607adb2
sha1
250cf286c19d3fa6faeeec20384e59acedda7066
sha256
344b4ad48cbebae4d85dbec089f9f09df764fbb977e95d475a108cbf121c20f0
sha512
2cdb7b995ba65d7b09db8759a5272f7f8c6b05c4c3a2b091157f10a0a0475537b12c5c7ed3fef60734244eae1ba8f55caa00f1a51a1a948311962cba472fce20
ripemd-160
1b6b783b880fec569b9d6c717ed17cece0dd8841
Diameter
323689978
Circumference
1016902056.9254
Area
8.2290251108588E+16
Volume
1.7757686380635E+25
Surface area
3.2916100443435E+17
Circumference
1016902056.9254
Perimeter
647379956
Area
26193800464410121
Diagonal
228883378.44592
Surface area
157162802786460726
Volume
4.2393353480307E+24
Space diagonal
280323743.89843
Perimeter
485534967
Area
1.134224831192E+16
Altitude
140161871.94921
Surface area
1.134224831192E+16
Volume
4.9961046205272E+23
Height
76294459.481975