161838 is an even 6-digits composite number following 161837
and preceding 161839 . In scientific notation, it is written as 1.61838 × 10^5.
The sum of its digits is 27. It has a total of 6 prime factors and 32 positive divisors.
There are 52488 positive integers (up to 161838) that are relatively prime to 161838.
161838 has 32 divisors, whose sum is 373920
The reverse of 161838 is 838161
Previous prime number is 3
Is Prime? no
Number parity even
Number length 6
Sum of Digits 27
Digital Root 9
Name
one hundred sixty-one thousand eight hundred thirty-eight
Scientific notation
1.61838 × 10^5
Engineering notation
1.61838 × 10^3
Prime Factorization
2 × 27 × 9 × 3 × 3 × 37
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
53946
Product of the distinct prime numbers
The prime factorization of 161838 is 2 × 27 × 9 × 3 × 3 × 37.
Since it has a total of 6 prime factors.
8 , 3 , 75 , 24 , 11 , 250 , 4326 , 3079 , 56929 , 70253 , 302648 , 20277 , 3783362 , 5523070 , 77025585 , 87249224 , 87145969 , 412934435 , 8355465331 , 9655413043
n×2
323676
n×3
485514
n×4
647352
n×5
809190
n÷2
80919
n÷3
53946
n÷3
40459.5
n÷5
32367.6
n2
26191538244
n3
4238786166332472
n4
6.8599667558691E+20
n5
1.1102032998364E+26
2 √n
402.29093949529
3 √n
54.4954405186
4 √n
20.057191715075
5 √n
11.010729679356
1 , 2 , 3 , 6 , 9 , 18 , 27 , 37 , 54 , 74 , 81 , 111 , 162 , 222 , 243 , 333 , 486 , 666 , 729 , 999 , 1458 , 1998 , 2187 , 2997 , 4374 , 5994 , 8991 , 17982 , 26973 , 53946 , 80919 , 161838
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-161837
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161838 can be divided by 32 positive divisors.
The sum of these divisors (counting 161838) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100111100000101110
3
Ternary
22020000000
4
Quaternary
213200232
5
Quinary
20134323
6
Senary
3245130
8
Octal
474056
10
Decimal
161838
12
Duodecimal
797a6
16
Hexadecimal
2782e
20
Vigesimal
104bi
36
Base36
3gvi
md5
91a7e7615918033ea5beb1ec8b5dafb9
sha1
0ac0cca4db89766a0a98ed65238edd671ef95f5f
sha256
5405e657860d7b70d0a57c5cc0241902dc9c77c5567259086b42fca0c83e6d73
sha512
d67d82cfefd1db34afe8b7ebd3cac769613fa1d8982185579dd522eda184f5717071c6e9b0c2e4256f62272a740e6726dcc285b801c272ae614fc628d8194f63
ripemd-160
a7af366790fc1510fb0e128d10b358ac3b856ce2
Diameter
323676
Circumference
1016858.1437433
Area
82283144133.567
Volume
1.7755385973718E+16
Surface area
329132576534.27
Circumference
1016858.1437433
Perimeter
647352
Area
26191538244
Diagonal
228873.49450734
Surface area
157149229464
Volume
4238786166332472
Space diagonal
280311.63859533
Perimeter
485514
Area
11341268741.748
Altitude
140155.81929767
Surface area
11341268741.748
Volume
4.995457403689E+14
Height
76291.164835779