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

21897989 (number)

21897989 is an odd 8-digits composite number following 21897988 and preceding 21897990. In scientific notation, it is written as 2.1897989 × 10^7. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 20609856 positive integers (up to 21897989) that are relatively prime to 21897989.

Interesting facts

21897989 has 4 divisors, whose sum is 23186124
The reverse of 21897989 is 98979812
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 53
Digital Root 8

Name

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

Notation

Scientific notation	2.1897989 × 10^7
Engineering notation	2.1897989 × 10^6

Prime Factorization of 21897989

Prime Factorization 17 × 1288117

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21897989	Product of the distinct prime numbers

The prime factorization of 21897989 is 17 × 1288117. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 5, 39, 61, 67, 697, 9347, 6259, 10638, 49467, 576127, 418462, 3528895, 7299799, 57842035, 52885306, 162656455, 412107811, 7058369520, 4743761661

Basic calculations (n = 21897989)

Multiplication

n×y

n×2	43795978
n×3	65693967
n×4	87591956
n×5	109489945

Division

n÷y

n÷2	10948994.5
n÷3	7299329.6666667
n÷3	5474497.25
n÷5	4379597.8

Exponentiation

n^y

n²	479521922244121
n³	1.0500565778561E+22
n⁴	2.299412739127E+29
n⁵	5.0352514867862E+36

Nth Root

^y√n

²√n	4679.5287155866
³√n	279.77017280138
⁴√n	68.407080887775
⁵√n	29.381965648614

Divisors of 21897989

1, 17, 1288117, 21897989

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	-21897988	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 21897989 can be divided by 4 positive divisors. The sum of these divisors (counting 21897989) is 1, the average is 0.25.

Base conversion 21897989

Base	System	Value
2	Binary	1010011100010001100000101
3	Ternary	1112012112101122
4	Quaternary	1103202030011
5	Quinary	21101213424
6	Senary	2101203325
8	Octal	123421405
10	Decimal	21897989
12	Duodecimal	7400545
16	Hexadecimal	14e2305
20	Vigesimal	6gh4j9
36	Base36	d1clh

Cryptographic Hash Functions

md5	f721322f8c304704011e4aae9e43d25c
sha1	86a9b0206d149ff60e30ec9c8b66197bdc5773c0
sha256	e75dc3c3de0ff92b73df9fbb00ce929cd20dd8439d3eac6a1750c63827e8a54b
sha512	0b7a2671b97a2717ee688712dbfca9a0ce708df192a9c6d442ec20a1be3ba60e8cd42a99eeb3687f0a9d25f00ae2fe63682d8dc1943e55fa1a399483666f9234
ripemd-160	0f2806643c5b05c35a20621c72c632523697db6a

21897989 as geometric shapes

Circle

Radius = n

Diameter	43795978
Circumference	137589122.74158
Area	1.5064625481574E+15

Sphere

Radius = n

Volume	4.398466707795E+22
Surface area	6.0258501926295E+15
Circumference	137589122.74158

Square

Length = n

Perimeter	87591956
Area	479521922244121
Diagonal	30968433.032497

Cube

Length = n

Surface area	2877131533464726
Volume	1.0500565778561E+22
Space diagonal	37928429.531584

Equilateral Triangle

Length = n

Perimeter	65693967
Area	2.0763908316748E+14
Altitude	18964214.765792

Triangular Pyramid

Length = n

Surface area	2.0763908316748E+14
Volume	1.2375035447193E+21
Height	10322811.010832