161755421 is an odd 9-digits prime number following 161755420
and preceding 161755422 . In scientific notation, it is written as 1.61755421 × 10^8.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 161755420 positive integers (up to 161755421) that are relatively prime to 161755421.
161755421 has 2 divisors, whose sum is 161755422
The reverse of 161755421 is 124557161
Previous prime number is 1
Is Prime? yes Number parity odd Number length 9 Sum of Digits 32 Digital Root 5
Name
one hundred sixty-one million seven hundred fifty-five thousand four hundred twenty-one
Scientific notation
1.61755421 × 10^8
Engineering notation
1.61755421 × 10^6
Prime Factorization
161755421
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
161755421 Product of the distinct prime numbers
The prime factorization of 161755421 is 161755421.
Since it has a total of 1 prime factors.
9 , 5 , 6 , 42 , 301 , 860 , 2460 , 3577 , 83712 , 79566 , 260565 , 46790 , 8430539 , 3409103 , 79837812 , 50257613 , 419178502 , 63785959 , 1950598784 , 2159569779
n×2
323510842
n×3
485266263
n×4
647021684
n×5
808777105
n÷2
80877710.5
n÷3
53918473.666667
n÷3
40438855.25
n÷5
32351084.2
n2
26164816222887241
n3
4.2323008635208E+24
n4
6.8459760797746E+32
n5
1.1073737429399E+41
2 √n12718.310461693
3 √n544.86170045213
4 √n112.77548697165
5 √n43.830030096434
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
161755422 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
80877711 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
12718.310501006 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999876357 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161755421 can be divided by 2 positive divisors.
The sum of these divisors (counting 161755421) is 161755422, the average is 80877711.
Base
System
Value
2
Binary
1001101001000011000100011101
3
Ternary
102021101000201112
4
Quaternary
21221003010131
5
Quinary
312402133141
6
Senary
24014551405
8
Octal
1151030435
10
Decimal
161755421
12
Duodecimal
46208565
16
Hexadecimal
9a4311d
20
Vigesimal
2aaj8b1
36
Base36
2oaza5
md5
85bcbcbf9c4240148818f78864652710
sha1
a362ad9e36b8524329602b574b8499096dbeccb5
sha256
26718f52fa19b3ef2b7dc0dbd4f3cc7beed3e852afb1359f8fad964a918d880f
sha512
353caae4c84b5725d0bf63ed5492ca63a5ff8e6d5d2f3b57bee2c7e8769ee1d15bbe50680ba9da479b4d3f13c7f6ce09ef915400d60e7516a94bdba6afdfc410
ripemd-160
b0ea629b1c9a2fa899f843a78301e8c36ac17e88
Diameter
323510842
Circumference
1016339284.5838
Area
8.219919442835E+16
Volume
1.7728220400825E+25
Surface area
3.287967777134E+17
Circumference
1016339284.5838
Perimeter
647021684
Area
26164816222887241
Diagonal
228756710.16557
Surface area
156988897337323446
Volume
4.2323008635208E+24
Space diagonal
280168607.57169
Perimeter
485266263
Area
1.1329697767186E+16
Altitude
140084303.78585
Surface area
1.1329697767186E+16
Volume
4.9878144010287E+23
Height
76252236.721857