161808468 (number)

161808468 is an even 9-digits composite number following 161808467 and preceding 161808469. In scientific notation, it is written as 1.61808468 × 10^8. The sum of its digits is 42. It has a total of 7 prime factors and 72 positive divisors. There are 50428800 positive integers (up to 161808468) that are relatively prime to 161808468.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred eight thousand four hundred sixty-eight

Notation

Scientific notation 1.61808468 × 10^8
Engineering notation 1.61808468 × 10^6

Prime Factorization of 161808468

Prime Factorization 2 × 2 × 3 × 103 × 103 × 31 × 41

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 785478
Product of the distinct prime numbers

The prime factorization of 161808468 is 2 × 2 × 3 × 103 × 103 × 31 × 41. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 7, 47, 20, 859, 839, 9351, 4156, 82740, 74766, 290014, 219391, 6619043, 9214359, 93931440, 72830546, 147006149, 244626852, 3810783352, 3600506594

Basic calculations (n = 161808468)

Multiplication

n×y
n×2 323616936
n×3 485425404
n×4 647233872
n×5 809042340

Division

n÷y
n÷2 80904234
n÷3 53936156
n÷3 40452117
n÷5 32361693.6

Exponentiation

ny
n2 26181980316507024
n3 4.2364661242202E+24
n4 6.8549609329396E+32
n5 1.1091907267588E+41

Nth Root

y√n
2√n 12720.395748561
3√n 544.92125563211
4√n 112.78473189471
5√n 43.832904493664

Divisors of 161808468

1, 2, 3, 4, 6, 12, 31, 41, 62, 82, 93, 103, 123, 124, 164, 186, 206, 246, 309, 372, 412, 492, 618, 1236, 1271, 2542, 3193, 3813, 4223, 5084, 6386, 7626, 8446, 9579, 10609, 12669, 12772, 15252, 16892, 19158, 21218, 25338, 31827, 38316, 42436, 50676, 63654, 127308, 130913, 261826, 328879, 392739, 434969, 523652, 657758, 785478, 869938, 986637, 1304907, 1315516, 1570956, 1739876, 1973274, 2609814, 3946548, 5219628, 13484039, 26968078, 40452117, 53936156, 80904234, 161808468

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161808467
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161808468 can be divided by 72 positive divisors. The sum of these divisors (counting 161808468) is 1, the average is 0.013888888888889.

Base conversion 161808468

Base System Value
2 Binary 1001101001010000000001010100
3 Ternary 102021110201111020
4 Quaternary 21221100001110
5 Quinary 312410332333
6 Senary 24020041140
8 Octal 1151200124
10 Decimal 161808468
12 Duodecimal 462331b0
16 Hexadecimal 9a50054
20 Vigesimal 2ab6138
36 Base36 2oc47o

Cryptographic Hash Functions

md5 f30b846716549338aa8df8f378643587
sha1 c374d838e0c1f79682b730da0ce21bc260075396
sha256 a563eb5641370282b95d0ed30d0abda417d4ae460a8b63335cd62023e9a6984a
sha512 d2af5c1333138daa7d70ecbda88a66054bd40e235f9311ceeb3927102575a037c0bf1d66560186968e80d54965d7e4bb6418b1e9288cfeec6d56406fa877f21c
ripemd-160 3b4246af26ab35115156c603993429d105b4c0f2

161808468 as geometric shapes

Circle

Radius = n
Diameter 323616936
Circumference 1016672588.7148
Area 8.2253117018771E+16

Sphere

Radius = n
Volume 1.7745667804043E+25
Surface area 3.2901246807508E+17
Circumference 1016672588.7148

Square

Length = n
Perimeter 647233872
Area 26181980316507024
Diagonal 228831729.95241

Cube

Length = n
Surface area 157091881899042144
Volume 4.2364661242202E+24
Space diagonal 280260487.67088

Equilateral Triangle

Length = n
Perimeter 485425404
Area 1.133713003774E+16
Altitude 140130243.83544

Triangular Pyramid

Length = n
Surface area 1.133713003774E+16
Volume 4.9927232078386E+23
Height 76277243.317471