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

21697921 (number)

21697921 is an odd 8-digits composite number following 21697920 and preceding 21697922. In scientific notation, it is written as 2.1697921 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 18432960 positive integers (up to 21697921) that are relatively prime to 21697921.

Interesting facts

21697921 has 8 divisors, whose sum is 25017984
The reverse of 21697921 is 12979612
Previous prime number is 113

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twenty-one million six hundred ninety-seven thousand nine hundred twenty-one

Notation

Scientific notation	2.1697921 × 10^7
Engineering notation	2.1697921 × 10^6

Prime Factorization of 21697921

Prime Factorization 7 × 113 × 27431

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21697921	Product of the distinct prime numbers

The prime factorization of 21697921 is 7 × 113 × 27431. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 1, 58, 88, 55, 420, 8301, 2352, 27571, 72831, 876855, 279726, 7360855, 8028044, 5610346, 28567789, 646802157, 149159348, 364513221, 713160080

Basic calculations (n = 21697921)

Multiplication

n×y

n×2	43395842
n×3	65093763
n×4	86791684
n×5	108489605

Division

n÷y

n÷2	10848960.5
n÷3	7232640.3333333
n÷3	5424480.25
n÷5	4339584.2

Exponentiation

n^y

n²	470799775722241
n³	1.0215376340439E+22
n⁴	2.2165242882011E+29
n⁵	4.8093968899969E+36

Nth Root

^y√n

²√n	4658.1027253593
³√n	278.9155373539
⁴√n	68.250294690641
⁵√n	29.328079490617

Divisors of 21697921

1, 7, 113, 791, 27431, 192017, 3099703, 21697921

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	-21697920	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 21697921 can be divided by 8 positive divisors. The sum of these divisors (counting 21697921) is 1, the average is 0.125.

Base conversion 21697921

Base	System	Value
2	Binary	1010010110001010110000001
3	Ternary	1111211100221201
4	Quaternary	1102301112001
5	Quinary	21023313141
6	Senary	2053021201
8	Octal	122612601
10	Decimal	21697921
12	Duodecimal	7324801
16	Hexadecimal	14b1581
20	Vigesimal	6fc4g1
36	Base36	cx281

Cryptographic Hash Functions

md5	9e7c11bc80b99e765b35e2fb741a676b
sha1	7514f7f0071f7f722dbcba3def6ee13c7b235411
sha256	8d41cb901d685cd53f022f48527655d20b46ce18e9828d08d112cdacbae01de3
sha512	f0a9642b26f3ca85c055dd9d154ae977e814142f93c82c33e42a125eaffe6cd40dccb83f9ac291c2aef2551be4d4052511663860900c43628308b3500157925e
ripemd-160	b69bc55143716a7c91f59b3c215308b93ebb05b0

21697921 as geometric shapes

Circle

Radius = n

Diameter	43395842
Circumference	136332058.42354
Area	1.4790611167207E+15

Sphere

Radius = n

Volume	4.2790068353037E+22
Surface area	5.9162444668829E+15
Circumference	136332058.42354

Square

Length = n

Perimeter	86791684
Area	470799775722241
Diagonal	30685494.1535

Cube

Length = n

Surface area	2824798654333446
Volume	1.0215376340439E+22
Space diagonal	37581901.590616

Equilateral Triangle

Length = n

Perimeter	65093763
Area	2.0386228293574E+14
Altitude	18790950.795308

Triangular Pyramid

Length = n

Surface area	2.0386228293574E+14
Volume	1.2038936471162E+21
Height	10228498.051167