161640161 (number)

161640161 is an odd 9-digits composite number following 161640160 and preceding 161640162. In scientific notation, it is written as 1.61640161 × 10^8. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 157087728 positive integers (up to 161640161) that are relatively prime to 161640161.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million six hundred forty thousand one hundred sixty-one

Notation

Scientific notation 1.61640161 × 10^8
Engineering notation 1.61640161 × 10^6

Prime Factorization of 161640161

Prime Factorization 37 × 1087 × 4019

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161640161
Product of the distinct prime numbers

The prime factorization of 161640161 is 37 × 1087 × 4019. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 2, 18, 7, 520, 813, 3430, 6501, 50064, 63664, 584083, 536404, 1751943, 5446444, 93108308, 18392547, 756534784, 820868529, 4978479928, 4639406360

Basic calculations (n = 161640161)

Multiplication

n×y
n×2 323280322
n×3 484920483
n×4 646560644
n×5 808200805

Division

n÷y
n÷2 80820080.5
n÷3 53880053.666667
n÷3 40410040.25
n÷5 32328032.2

Exponentiation

ny
n2 26127541648105921
n3 4.223260038534E+24
n4 6.8264843257351E+32
n5 1.1034340254758E+41

Nth Root

y√n
2√n 12713.778391965
3√n 544.73225464749
4√n 112.75539185318
5√n 43.823782034086

Divisors of 161640161

1, 37, 1087, 4019, 40219, 148703, 4368653, 161640161

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161640160
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161640161 can be divided by 8 positive divisors. The sum of these divisors (counting 161640161) is 1, the average is 0.125.

Base conversion 161640161

Base System Value
2 Binary 1001101000100110111011100001
3 Ternary 102021011011121122
4 Quaternary 21220212323201
5 Quinary 312334441121
6 Senary 24012302025
8 Octal 1150467341
10 Decimal 161640161
12 Duodecimal 46171915
16 Hexadecimal 9a26ee1
20 Vigesimal 2aa5081
36 Base36 2o8ich

Cryptographic Hash Functions

md5 e8589ea5e68f3017de067474f52e66bb
sha1 44f153e636bb0bd413aae0431667954d580f9b22
sha256 e128ea1c322933dbec68cf61a9ee227182188835c2357162fbc22fd11803de64
sha512 f72f1945604e1de8a2d3be8d8979354117aeb346f7e09d27524d2688b09c4a5ea76cab7c93bef015953c3f8037a155dea355d912d8150bff70986acc4b596dba
ripemd-160 aa4e21ab5fa7be1a9f7ff746603171d654bffcb7

161640161 as geometric shapes

Circle

Radius = n
Diameter 323280322
Circumference 1015615084.6453
Area 8.2082092898051E+16

Sphere

Radius = n
Volume 1.7690350281677E+25
Surface area 3.283283715922E+17
Circumference 1015615084.6453

Square

Length = n
Perimeter 646560644
Area 26127541648105921
Diagonal 228593707.91037

Cube

Length = n
Surface area 156765249888635526
Volume 4.223260038534E+24
Space diagonal 279968971.39561

Equilateral Triangle

Length = n
Perimeter 484920483
Area 1.1313557402848E+16
Altitude 139984485.69781

Triangular Pyramid

Length = n
Surface area 1.1313557402848E+16
Volume 4.9771596866026E+23
Height 76197902.63679