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

216921 (number)

216921 is an odd 6-digits composite number following 216920 and preceding 216922. In scientific notation, it is written as 2.16921 × 10^5. The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors. There are 144612 positive integers (up to 216921) that are relatively prime to 216921.

Interesting facts

216921 has 4 divisors, whose sum is 289232
The reverse of 216921 is 129612
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 21
Digital Root 3

Name

Name	two hundred sixteen thousand nine hundred twenty-one

Notation

Scientific notation	2.16921 × 10^5
Engineering notation	2.16921 × 10^3

Prime Factorization of 216921

Prime Factorization 3 × 72307

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	216921	Product of the distinct prime numbers

The prime factorization of 216921 is 3 × 72307. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 4, 58, 96, 956, 26, 7396, 454, 61093, 8415, 920965, 583489, 54584, 6946807, 42251906, 86667425, 30636520, 652263198, 3349744998, 4831417988

Basic calculations (n = 216921)

Multiplication

n×y

n×2	433842
n×3	650763
n×4	867684
n×5	1084605

Division

n÷y

n÷2	108460.5
n÷3	72307
n÷3	54230.25
n÷5	43384.2

Exponentiation

n^y

n²	47054720241
n³	10207156969397961
n⁴	2.2141466969588E+21
n⁵	4.8029491565099E+26

Nth Root

^y√n

²√n	465.74778582404
³√n	60.085156859088
⁴√n	21.581190556224
⁵√n	11.675092216902

Divisors of 216921

1, 3, 72307, 216921

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-216920	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 216921 can be divided by 4 positive divisors. The sum of these divisors (counting 216921) is 1, the average is 0.25.

Base conversion 216921

Base	System	Value
2	Binary	110100111101011001
3	Ternary	102000120010
4	Quaternary	310331121
5	Quinary	23420141
6	Senary	4352133
8	Octal	647531
10	Decimal	216921
12	Duodecimal	a5649
16	Hexadecimal	34f59
20	Vigesimal	17261
36	Base36	4ndl

Cryptographic Hash Functions

md5	8c81109f59634c7d2b888085fd913fd6
sha1	77513dbf3c90ee5fd5e6b5f221a1db6963240918
sha256	e9e78bbab48c289266d3fb884b0220247ebd997f8243936faa6af04cb2492e98
sha512	51f31697307a26eb89ce64cfa596ca6ad5277c38a49a10c057fa65c982b0d023b9f291d0a4d3949d0cb888b1fcc14c53e7f17410fb43d808455eb2a98de1258b
ripemd-160	7b7efac8182ba34c1656a4f94ffb3aea238d73ca

216921 as geometric shapes

Circle

Radius = n

Diameter	433842
Circumference	1362954.8400187
Area	147826763425.85

Sphere

Radius = n

Volume	4.2755639132131E+16
Surface area	591307053703.39
Circumference	1362954.8400187

Square

Length = n

Perimeter	867684
Area	47054720241
Diagonal	306772.62016353

Cube

Length = n

Surface area	282328321446
Volume	10207156969397961
Space diagonal	375718.19322865

Equilateral Triangle

Length = n

Perimeter	650763
Area	20375291548.338
Altitude	187859.09661432

Triangular Pyramid

Length = n

Surface area	20375291548.338
Volume	1.2029249849495E+15
Height	102257.54005451