161738641 (number)

161738641 is an odd 9-digits composite number following 161738640 and preceding 161738642. In scientific notation, it is written as 1.61738641 × 10^8. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 161342784 positive integers (up to 161738641) that are relatively prime to 161738641.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million seven hundred thirty-eight thousand six hundred forty-one

Notation

Scientific notation 1.61738641 × 10^8
Engineering notation 1.61738641 × 10^6

Prime Factorization of 161738641

Prime Factorization 409 × 395449

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 161738641
Product of the distinct prime numbers

The prime factorization of 161738641 is 409 × 395449. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 95, 8, 339, 354, 7091, 8436, 89841, 7639, 73259, 451915, 1714591, 9117434, 37427093, 9289719, 921898438, 583422337, 7699740049, 7916147495

Basic calculations (n = 161738641)

Multiplication

n×y
n×2 323477282
n×3 485215923
n×4 646954564
n×5 808693205

Division

n÷y
n÷2 80869320.5
n÷3 53912880.333333
n÷3 40434660.25
n÷5 32347728.2

Exponentiation

ny
n2 26159387992526881
n3 4.230983863303E+24
n4 6.8431358014356E+32
n5 1.1067994847026E+41

Nth Root

y√n
2√n 12717.650765766
3√n 544.84285905269
4√n 112.77256211405
5√n 43.82912070073

Divisors of 161738641

1, 409, 395449, 161738641

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161738640
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161738641 can be divided by 4 positive divisors. The sum of these divisors (counting 161738641) is 1, the average is 0.25.

Base conversion 161738641

Base System Value
2 Binary 1001101000111110111110010001
3 Ternary 102021100011201001
4 Quaternary 21220332332101
5 Quinary 312401114031
6 Senary 24014342001
8 Octal 1150767621
10 Decimal 161738641
12 Duodecimal 461ba901
16 Hexadecimal 9a3ef91
20 Vigesimal 2aah6c1
36 Base36 2oamc1

Cryptographic Hash Functions

md5 7f1e649f6dc803d43aa943773e40e3d0
sha1 4455b3321a272fe48b01d932747cab3e25e7b6e8
sha256 79d9566336c74d42983c33c7b7c267ec29255d64f90fb50269a7901582e829d3
sha512 42d58b962487d305e8a9327516689111d3b8c9142244f1e411928dc8036826474d0ff624f18d034d47c4c298176792487f67df099249a3da5d72b125572125fe
ripemd-160 6fe4416d23b1b14d0036481c8f9588b71e84b94e

161738641 as geometric shapes

Circle

Radius = n
Diameter 323477282
Circumference 1016233852.7344
Area 8.2182141139727E+16

Sphere

Radius = n
Volume 1.7722703763213E+25
Surface area 3.2872856455891E+17
Circumference 1016233852.7344

Square

Length = n
Perimeter 646954564
Area 26159387992526881
Diagonal 228732979.66199

Cube

Length = n
Surface area 156956327955161286
Volume 4.230983863303E+24
Space diagonal 280139543.75914

Equilateral Triangle

Length = n
Perimeter 485215923
Area 1.1327347274491E+16
Altitude 140069771.87957

Triangular Pyramid

Length = n
Surface area 1.1327347274491E+16
Volume 4.9862623013874E+23
Height 76244326.553998