161872 is an even 6-digits composite number following 161871
and preceding 161873 . In scientific notation, it is written as 1.61872 × 10^5.
The sum of its digits is 25. It has a total of 6 prime factors and 20 positive divisors.
There are 79200 positive integers (up to 161872) that are relatively prime to 161872.
161872 has 20 divisors, whose sum is 320416
The reverse of 161872 is 278161
Previous prime number is 151
Is Prime? no
Number parity even
Number length 6
Sum of Digits 25
Digital Root 7
Name
one hundred sixty-one thousand eight hundred seventy-two
Scientific notation
1.61872 × 10^5
Engineering notation
1.61872 × 10^3
Prime Factorization
2 × 2 × 2 × 2 × 151 × 67
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20234
Product of the distinct prime numbers
The prime factorization of 161872 is 2 × 2 × 2 × 2 × 151 × 67.
Since it has a total of 6 prime factors.
9 , 3 , 22 , 66 , 30 , 234 , 6377 , 6874 , 61922 , 27041 , 964699 , 517507 , 8326509 , 4698656 , 49203822 , 99250376 , 493431490 , 46831518 , 4808580943 , 7365056915
n×2
323744
n×3
485616
n×4
647488
n×5
809360
n÷2
80936
n÷3
53957.333333333
n÷3
40468
n÷5
32374.4
n2
26202544384
n3
4241458264526848
n4
6.8657333219549E+20
n5
1.1113699842915E+26
2 √n
402.33319524991
3 √n
54.499256505863
4 √n
20.058245069046
5 √n
11.011192281901
1 , 2 , 4 , 8 , 16 , 67 , 134 , 151 , 268 , 302 , 536 , 604 , 1072 , 1208 , 2416 , 10117 , 20234 , 40468 , 80936 , 161872
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-161871
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161872 can be divided by 20 positive divisors.
The sum of these divisors (counting 161872) is 1, the average is 0.05.
Base
System
Value
2
Binary
100111100001010000
3
Ternary
22020001021
4
Quaternary
213201100
5
Quinary
20134442
6
Senary
3245224
8
Octal
474120
10
Decimal
161872
12
Duodecimal
79814
16
Hexadecimal
27850
20
Vigesimal
104dc
36
Base36
3gwg
md5
321613c180d626858d8ddc22aa4294bd
sha1
cc4a8eb3f358332ab267fc222c71a57882737078
sha256
994cefde72ecac193a16b66d28b1a6233bf4fc92749261d89e024d2453647cc5
sha512
0b099bc5409220be9a8fa65ecc3e0e4a01dd1a3bd4c206166b9777dd392c36e33355368f81e8dfba868aae20604c08f132e1fcfe1b968b8255c5d835f7a5662d
ripemd-160
e6e3c931f801188bff2afccee5c3261520d88a26
Diameter
323744
Circumference
1017071.7720438
Area
82317720942.135
Volume
1.776657883246E+16
Surface area
329270883768.54
Circumference
1017071.7720438
Perimeter
647488
Area
26202544384
Diagonal
228921.57776846
Surface area
157215266304
Volume
4241458264526848
Space diagonal
280370.52832279
Perimeter
485616
Area
11346034540.167
Altitude
140185.26416139
Surface area
11346034540.167
Volume
4.9986065016111E+14
Height
76307.192589486