161872 (number)

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.

Interesting facts

Basic properties

Name

Name one hundred sixty-one thousand eight hundred seventy-two

Notation

Scientific notation 1.61872 × 10^5
Engineering notation 1.61872 × 10^3

Prime Factorization of 161872

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.

Most popular turbo-numbers

Basic calculations (n = 161872)

Multiplication

n×y
n×2 323744
n×3 485616
n×4 647488
n×5 809360

Division

n÷y
n÷2 80936
n÷3 53957.333333333
n÷3 40468
n÷5 32374.4

Exponentiation

ny
n2 26202544384
n3 4241458264526848
n4 6.8657333219549E+20
n5 1.1113699842915E+26

Nth Root

y√n
2√n 402.33319524991
3√n 54.499256505863
4√n 20.058245069046
5√n 11.011192281901

Divisors of 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 conversion 161872

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

Cryptographic Hash Functions

md5 321613c180d626858d8ddc22aa4294bd
sha1 cc4a8eb3f358332ab267fc222c71a57882737078
sha256 994cefde72ecac193a16b66d28b1a6233bf4fc92749261d89e024d2453647cc5
sha512 0b099bc5409220be9a8fa65ecc3e0e4a01dd1a3bd4c206166b9777dd392c36e33355368f81e8dfba868aae20604c08f132e1fcfe1b968b8255c5d835f7a5662d
ripemd-160 e6e3c931f801188bff2afccee5c3261520d88a26

161872 as geometric shapes

Circle

Radius = n
Diameter 323744
Circumference 1017071.7720438
Area 82317720942.135

Sphere

Radius = n
Volume 1.776657883246E+16
Surface area 329270883768.54
Circumference 1017071.7720438

Square

Length = n
Perimeter 647488
Area 26202544384
Diagonal 228921.57776846

Cube

Length = n
Surface area 157215266304
Volume 4241458264526848
Space diagonal 280370.52832279

Equilateral Triangle

Length = n
Perimeter 485616
Area 11346034540.167
Altitude 140185.26416139

Triangular Pyramid

Length = n
Surface area 11346034540.167
Volume 4.9986065016111E+14
Height 76307.192589486