161036721 (number)

161036721 is an odd 9-digits composite number following 161036720 and preceding 161036722. In scientific notation, it is written as 1.61036721 × 10^8. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 107067744 positive integers (up to 161036721) that are relatively prime to 161036721.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million thirty-six thousand seven hundred twenty-one

Notation

Scientific notation 1.61036721 × 10^8
Engineering notation 1.61036721 × 10^6

Prime Factorization of 161036721

Prime Factorization 3 × 9 × 379 × 15737

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 161036721
Product of the distinct prime numbers

The prime factorization of 161036721 is 3 × 9 × 379 × 15737. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 69, 15, 438, 385, 608, 1410, 92508, 54892, 684133, 842055, 4948081, 5333629, 32748952, 82854220, 401336512, 611433668, 350185912, 2998941324

Basic calculations (n = 161036721)

Multiplication

n×y
n×2 322073442
n×3 483110163
n×4 644146884
n×5 805183605

Division

n÷y
n÷2 80518360.5
n÷3 53678907
n÷3 40259180.25
n÷5 32207344.2

Exponentiation

ny
n2 25932825510431841
n3 4.1761371864651E+24
n4 6.725114389545E+32
n5 1.0829903696423E+41

Nth Root

y√n
2√n 12690.024468062
3√n 544.05353896546
4√n 112.65000873529
5√n 43.791012205472

Divisors of 161036721

1, 3, 9, 27, 379, 1137, 3411, 10233, 15737, 47211, 141633, 424899, 5964323, 17892969, 53678907, 161036721

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161036720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161036721 can be divided by 16 positive divisors. The sum of these divisors (counting 161036721) is 1, the average is 0.0625.

Base conversion 161036721

Base System Value
2 Binary 1001100110010011100110110001
3 Ternary 102020000111212000
4 Quaternary 21212103212301
5 Quinary 312211133341
6 Senary 23551324213
8 Octal 1146234661
10 Decimal 161036721
12 Duodecimal 45b20669
16 Hexadecimal 99939b1
20 Vigesimal 2a69bg1
36 Base36 2nvkq9

Cryptographic Hash Functions

md5 6e903fc452d2589d71fd99d91591ba47
sha1 a184165f791e45c86e0655cc738a9ffdbc1d5e14
sha256 ebe28aa007653e317f4a3207c6a63a6db8508da6fd578e53def6db5b163ce87b
sha512 2e2e1c8a0853cfdefa6d2d65cd552a02a9b0269da1f69faae455ae4f009c06cd0df199384c0acd59efddcb4c6ecb52839c7e532fa87c3c7bc60b02b9f2e06b6e
ripemd-160 4d13418f988476b39a71e2cbb4227ccf625ff778

161036721 as geometric shapes

Circle

Radius = n
Diameter 322073442
Circumference 1011823559.3036
Area 8.1470374110399E+16

Sphere

Radius = n
Volume 1.7492962540509E+25
Surface area 3.2588149644159E+17
Circumference 1011823559.3036

Square

Length = n
Perimeter 644146884
Area 25932825510431841
Diagonal 227740314.87829

Cube

Length = n
Surface area 155596953062591046
Volume 4.1761371864651E+24
Space diagonal 278923782.65629

Equilateral Triangle

Length = n
Perimeter 483110163
Area 1.1229242841972E+16
Altitude 139461891.32815

Triangular Pyramid

Length = n
Surface area 1.1229242841972E+16
Volume 4.921624872858E+23
Height 75913438.292764