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

161921 (number)

161921 is an odd 6-digits prime number following 161920 and preceding 161922. In scientific notation, it is written as 1.61921 × 10^5. The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors. There are 161920 positive integers (up to 161921) that are relatively prime to 161921.

Interesting facts

161921 has 2 divisors, whose sum is 161922
The reverse of 161921 is 129161
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 20
Digital Root 2

Name

Name	one hundred sixty-one thousand nine hundred twenty-one

Notation

Scientific notation	1.61921 × 10^5
Engineering notation	1.61921 × 10^3

Prime Factorization of 161921

Prime Factorization 161921

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	161921	Product of the distinct prime numbers

The prime factorization of 161921 is 161921. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 3, 6, 71, 239, 588, 9451, 5314, 60499, 49723, 324215, 743575, 2431543, 5563196, 22636089, 47031145, 937138022, 601602035, 4507831982, 9554154846

Basic calculations (n = 161921)

Multiplication

n×y

n×2	323842
n×3	485763
n×4	647684
n×5	809605

Division

n÷y

n÷2	80960.5
n÷3	53973.666666667
n÷3	40480.25
n÷5	32384.2

Exponentiation

n^y

n²	26218410241
n³	4245311204632961
n⁴	6.8740503556537E+20
n⁵	1.1130531076378E+26

Nth Root

^y√n

²√n	402.39408544361
³√n	54.504755077074
⁴√n	20.059762846146
⁵√n	11.011858837085

Divisors of 161921

1, 161921

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	161922	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	80961	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	402.39532800469	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999876483739	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161921 can be divided by 2 positive divisors. The sum of these divisors (counting 161921) is 161922, the average is 80961.

Base conversion 161921

Base	System	Value
2	Binary	100111100010000001
3	Ternary	22020010002
4	Quaternary	213202001
5	Quinary	20140141
6	Senary	3245345
8	Octal	474201
10	Decimal	161921
12	Duodecimal	79855
16	Hexadecimal	27881
20	Vigesimal	104g1
36	Base36	3gxt

Cryptographic Hash Functions

md5	49dfe1f94cd4bd78955968565c750c8f
sha1	3847a836ef647ff7c41fc42a1abac30e8f998294
sha256	8d915f7ab16331177ee5374df0e549e9b1a1671f9ea635c64969ad40276bb0b3
sha512	e632bf004a67b6514a2e8adeda31fab47eef197c630d4b551c0103c8ba3e30978f6ad2ae989020b8ce78771b1ec04e6e4a2383424869cefba31c199822180d30
ripemd-160	691f9d0c50b0e4fb3c8c58bc12559c995db9a30a

161921 as geometric shapes

Circle

Radius = n

Diameter	323842
Circumference	1017379.6481238
Area	82367565001.929

Sphere

Radius = n

Volume	1.7782717990236E+16
Surface area	329470260007.72
Circumference	1017379.6481238

Square

Length = n

Perimeter	647684
Area	26218410241
Diagonal	228990.87423301

Cube

Length = n

Surface area	157310461446
Volume	4245311204632961
Space diagonal	280455.39881236

Equilateral Triangle

Length = n

Perimeter	485763
Area	11352904657.774
Altitude	140227.69940618

Triangular Pyramid

Length = n

Surface area	11352904657.774
Volume	5.003147235072E+14
Height	76330.291411005