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

21897961 (number)

21897961 is an odd 8-digits composite number following 21897960 and preceding 21897962. In scientific notation, it is written as 2.1897961 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 21850000 positive integers (up to 21897961) that are relatively prime to 21897961.

Interesting facts

21897961 has 4 divisors, whose sum is 21945924
The reverse of 21897961 is 16979812
Previous prime number is 461

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty-one million eight hundred ninety-seven thousand nine hundred sixty-one

Notation

Scientific notation	2.1897961 × 10^7
Engineering notation	2.1897961 × 10^6

Prime Factorization of 21897961

Prime Factorization 461 × 47501

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21897961	Product of the distinct prime numbers

The prime factorization of 21897961 is 461 × 47501. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 43, 74, 295, 242, 5903, 7880, 69267, 44498, 936680, 961392, 2035378, 8677615, 51517779, 11956918, 278671552, 342212304, 861994591, 8224580718

Basic calculations (n = 21897961)

Multiplication

n×y

n×2	43795922
n×3	65693883
n×4	87591844
n×5	109489805

Division

n÷y

n÷2	10948980.5
n÷3	7299320.3333333
n÷3	5474490.25
n÷5	4379592.2

Exponentiation

n^y

n²	479520695957521
n³	1.0500525498771E+22
n⁴	2.2994009785159E+29
n⁵	5.0352192950902E+36

Nth Root

^y√n

²√n	4679.5257238314
³√n	279.77005355804
⁴√n	68.40705902048
⁵√n	29.381958134724

Divisors of 21897961

1, 461, 47501, 21897961

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	-21897960	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 21897961 can be divided by 4 positive divisors. The sum of these divisors (counting 21897961) is 1, the average is 0.25.

Base conversion 21897961

Base	System	Value
2	Binary	1010011100010001011101001
3	Ternary	1112012112100121
4	Quaternary	1103202023221
5	Quinary	21101213321
6	Senary	2101203241
8	Octal	123421351
10	Decimal	21897961
12	Duodecimal	7400521
16	Hexadecimal	14e22e9
20	Vigesimal	6gh4i1
36	Base36	d1ckp

Cryptographic Hash Functions

md5	09cc2724b66746c85ede24cecb2d378c
sha1	51c55c62a491ecccd3f328a3f29cce82450101fe
sha256	a0548cd412a8c418eb51d192280f80ce81d2dda4be31d2fcde5f49c324748413
sha512	fce583763ade860dc7f72e51b3c65fa8b941fe9fc1d588ded667a86d324ad4e388f0b1d4d6867949adfb9f438d22a45325d59d87db43491313f507523c03b3a7
ripemd-160	9a9454f2f8fb7769651cc08a090a4825dd394f53

21897961 as geometric shapes

Circle

Radius = n

Diameter	43795922
Circumference	137588946.81239
Area	1.5064586956644E+15

Sphere

Radius = n

Volume	4.398449835436E+22
Surface area	6.0258347826577E+15
Circumference	137588946.81239

Square

Length = n

Perimeter	87591844
Area	479520695957521
Diagonal	30968393.434517

Cube

Length = n

Surface area	2877124175745126
Volume	1.0500525498771E+22
Space diagonal	37928381.034162

Equilateral Triangle

Length = n

Perimeter	65693883
Area	2.076385521698E+14
Altitude	18964190.517081

Triangular Pyramid

Length = n

Surface area	2.076385521698E+14
Volume	1.2374987977005E+21
Height	10322797.811506