161609987 (number)

161609987 is an odd 9-digits composite number following 161609986 and preceding 161609988. In scientific notation, it is written as 1.61609987 × 10^8. The sum of its digits is 47. It has a total of 6 prime factors and 48 positive divisors. There are 119952000 positive integers (up to 161609987) that are relatively prime to 161609987.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million six hundred nine thousand nine hundred eighty-seven

Notation

Scientific notation 1.61609987 × 10^8
Engineering notation 1.61609987 × 10^6

Prime Factorization of 161609987

Prime Factorization 7 × 7 × 11 × 41 × 103 × 71

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 23087141
Product of the distinct prime numbers

The prime factorization of 161609987 is 7 × 7 × 11 × 41 × 103 × 71. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161609987)

Multiplication

n×y
n×2 323219974
n×3 484829961
n×4 646439948
n×5 808049935

Division

n÷y
n÷2 80804993.5
n÷3 53869995.666667
n÷3 40402496.75
n÷5 32321997.4

Exponentiation

ny
n2 26117787898140169
n3 4.2208953626872E+24
n4 6.8213884469224E+32
n5 1.1024044982291E+41

Nth Root

y√n
2√n 12712.591671253
3√n 544.69835677247
4√n 112.75012936246
5√n 43.8221457606

Divisors of 161609987

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161609986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161609987 can be divided by 48 positive divisors. The sum of these divisors (counting 161609987) is 1, the average is 0.020833333333333.

Base conversion 161609987

Base System Value
2 Binary 1001101000011111100100000011
3 Ternary 102021002122020002
4 Quaternary 21220133210003
5 Quinary 312333004422
6 Senary 24011510215
8 Octal 1150374403
10 Decimal 161609987
12 Duodecimal 4615836b
16 Hexadecimal 9a1f903
20 Vigesimal 2aa14j7
36 Base36 2o7v2b

Cryptographic Hash Functions

md5 f92685e69224da75c6bdee3ac4806d0f
sha1 2d45e0ff1dcfe36f786eba4894057aafeae95953
sha256 4bb35a2df69fcaeabec0600e09538b7c3370e7df0b67b30257f17a30c2e6c226
sha512 343a20089940dec9b13af9ca8745d72d964664340a59d66ee67ca82030614f4e29a18b438878f49fb2aced01b3fa2a3f89485aa0d6723402562e2c693238ef22
ripemd-160 beb672893a6278ede99fbaad58d1d676c1eb162e

161609987 as geometric shapes

Circle

Radius = n
Diameter 323219974
Circumference 1015425495.8119
Area 8.2051450588814E+16

Sphere

Radius = n
Volume 1.7680445150652E+25
Surface area 3.2820580235525E+17
Circumference 1015425495.8119

Square

Length = n
Perimeter 646439948
Area 26117787898140169
Diagonal 228551035.43034

Cube

Length = n
Surface area 156706727388841014
Volume 4.2208953626872E+24
Space diagonal 279916708.49455

Equilateral Triangle

Length = n
Perimeter 484829961
Area 1.1309333905222E+16
Altitude 139958354.24727

Triangular Pyramid

Length = n
Surface area 1.1309333905222E+16
Volume 4.9743728893916E+23
Height 76183678.47678