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

21156989 (number)

21156989 is an odd 8-digits composite number following 21156988 and preceding 21156990. In scientific notation, it is written as 2.1156989 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 17712576 positive integers (up to 21156989) that are relatively prime to 21156989.

Interesting facts

21156989 has 8 divisors, whose sum is 24742080
The reverse of 21156989 is 98965112
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	twenty-one million one hundred fifty-six thousand nine hundred eighty-nine

Notation

Scientific notation	2.1156989 × 10^7
Engineering notation	2.1156989 × 10^6

Prime Factorization of 21156989

Prime Factorization 7 × 43 × 70289

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21156989	Product of the distinct prime numbers

The prime factorization of 21156989 is 7 × 43 × 70289. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 8, 1, 85, 724, 650, 9060, 4411, 93575, 40176, 599460, 662156, 6274976, 8725184, 60947985, 93230165, 950850603, 367422300, 3623735407, 9268762867

Basic calculations (n = 21156989)

Multiplication

n×y

n×2	42313978
n×3	63470967
n×4	84627956
n×5	105784945

Division

n÷y

n÷2	10578494.5
n÷3	7052329.6666667
n÷3	5289247.25
n÷5	4231397.8

Exponentiation

n^y

n²	447618183546121
n³	9.4702529854853E+21
n⁴	2.0036203824113E+29
n⁵	4.2390574390851E+36

Nth Root

^y√n

²√n	4599.6727057477
³√n	276.57820481109
⁴√n	67.820886943092
⁵√n	29.180368502363

Divisors of 21156989

1, 7, 43, 301, 70289, 492023, 3022427, 21156989

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	-21156988	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 21156989 can be divided by 8 positive divisors. The sum of these divisors (counting 21156989) is 1, the average is 0.125.

Base conversion 21156989

Base	System	Value
2	Binary	1010000101101010001111101
3	Ternary	1110210212221012
4	Quaternary	1100231101331
5	Quinary	20404010424
6	Senary	2033245005
8	Octal	120552175
10	Decimal	21156989
12	Duodecimal	7103765
16	Hexadecimal	142d47d
20	Vigesimal	6c4c99
36	Base36	clgu5

Cryptographic Hash Functions

md5	538fa90f30c2b27dcc55a32e9a7826f9
sha1	62d305bda9b0e433f94fdb255611debd6823e52c
sha256	affe588c404daaf7885fb4f7bd5d8c151d429dd5a77b79b0a02ce7470174ba93
sha512	958a6dd934ff187f487651706670d9b872d047f2dc37d41db8683c5523f31f0b668332ad496a48ba6fcfd9d527b6aa0fba9b841d9eea296cbadaf16f1e939f17
ripemd-160	bc17ca75482d9a5b0d15609e2efa5ac701e56fbf

21156989 as geometric shapes

Circle

Radius = n

Diameter	42313978
Circumference	132933282.42896
Area	1.4062339970417E+15

Sphere

Radius = n

Volume	3.966890294245E+22
Surface area	5.6249359881668E+15
Circumference	132933282.42896

Square

Length = n

Perimeter	84627956
Area	447618183546121
Diagonal	29920500.782778

Cube

Length = n

Surface area	2685709101276726
Volume	9.4702529854853E+21
Space diagonal	36644979.883176

Equilateral Triangle

Length = n

Perimeter	63470967
Area	1.9382435907339E+14
Altitude	18322489.941588

Triangular Pyramid

Length = n

Surface area	1.9382435907339E+14
Volume	1.1160800175981E+21
Height	9973500.2609261