Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

161640 (number)

161640 is an even 6-digits composite number following 161639 and preceding 161641. In scientific notation, it is written as 1.61640 × 10^5. The sum of its digits is 18. It has a total of 5 prime factors and 16 positive divisors. There are 43008 positive integers (up to 161640) that are relatively prime to 161640.

Interesting facts

161640 has 16 divisors, whose sum is 310500
The reverse of 161640 is 046161
Previous prime number is 45

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 18
Digital Root 9

Name

Name	one hundred sixty-one thousand six hundred forty

Notation

Scientific notation	1.61640 × 10^5
Engineering notation	1.61640 × 10^3

Prime Factorization of 161640

Prime Factorization 2 × 2 × 2 × 45 × 449

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	40410	Product of the distinct prime numbers

The prime factorization of 161640 is 2 × 2 × 2 × 45 × 449. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 6, 28, 45, 388, 893, 6397, 58, 52794, 53956, 477196, 479272, 8228658, 6515437, 99910186, 7063722, 974545266, 118970443, 6482809875, 3508163364

Basic calculations (n = 161640)

Multiplication

n×y

n×2	323280
n×3	484920
n×4	646560
n×5	808200

Division

n÷y

n÷2	80820
n÷3	53880
n÷3	40410
n÷5	32328

Exponentiation

n^y

n²	26127489600
n³	4223247418944000
n⁴	6.8264571279811E+20
n⁵	1.1034285301669E+26

Nth Root

^y√n

²√n	402.04477362602
³√n	54.473207378913
⁴√n	20.051054177425
⁵√n	11.008034153997

Divisors of 161640

1, 2, 4, 8, 45, 90, 180, 360, 449, 898, 1796, 3592, 20205, 40410, 80820, 161640

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	-161639	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 161640 can be divided by 16 positive divisors. The sum of these divisors (counting 161640) is 1, the average is 0.0625.

Base conversion 161640

Base	System	Value
2	Binary	100111011101101000
3	Ternary	22012201200
4	Quaternary	213131220
5	Quinary	20133030
6	Senary	3244200
8	Octal	473550
10	Decimal	161640
12	Duodecimal	79660
16	Hexadecimal	27768
20	Vigesimal	10420
36	Base36	3gq0

Cryptographic Hash Functions

md5	d847e5e126e1a7df4d2934b29a132365
sha1	853074e44bc9e737bd55dfb920dfde60fdb0be79
sha256	a14188565cb352bad7f12e7fc28089c26b1e75cff37445dce9fc3032000110ce
sha512	aa9088ed0565987be66ceeca2ff2f4bc70e74c0830179f727e6b39a91ecf23b271c4de182495356564749ec8e59d0d3316e1da0a54ef1b5848f5754141559bd6
ripemd-160	12991113c7c521720380397055d15cb1c4b75ca1

161640 as geometric shapes

Circle

Radius = n

Diameter	323280
Circumference	1015614.0730525
Area	82081929384.104

Sphere

Radius = n

Volume	1.7690297420862E+16
Surface area	328327717536.41
Circumference	1015614.0730525

Square

Length = n

Perimeter	646560
Area	26127489600
Diagonal	228593.48022199

Cube

Length = n

Surface area	156764937600
Volume	4223247418944000
Space diagonal	279968.69253543

Equilateral Triangle

Length = n

Perimeter	484920
Area	11313534865.357
Altitude	139984.34626772

Triangular Pyramid

Length = n

Surface area	11313534865.357
Volume	4.9771448142731E+14
Height	76197.826740662