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

21156988 (number)

21156988 is an even 8-digits composite number following 21156987 and preceding 21156989. In scientific notation, it is written as 2.1156988 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 6 positive divisors. There are 10578492 positive integers (up to 21156988) that are relatively prime to 21156988.

Interesting facts

21156988 has 6 divisors, whose sum is 37024736
The reverse of 21156988 is 88965112
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	2.1156988 × 10^7
Engineering notation	2.1156988 × 10^6

Prime Factorization of 21156988

Prime Factorization 2 × 2 × 5289247

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	10578494	Product of the distinct prime numbers

The prime factorization of 21156988 is 2 × 2 × 5289247. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 2, 44, 42, 224, 47, 2114, 5482, 57091, 79896, 787278, 497636, 455748, 4088646, 63166889, 80410347, 279370932, 940204117, 21764951, 4952179318

Basic calculations (n = 21156988)

Multiplication

n×y

n×2	42313976
n×3	63470964
n×4	84627952
n×5	105784940

Division

n÷y

n÷2	10578494
n÷3	7052329.3333333
n÷3	5289247
n÷5	4231397.6

Exponentiation

n^y

n²	447618141232144
n³	9.4702516426308E+21
n⁴	2.0036200036012E+29
n⁵	4.239056437275E+36

Nth Root

^y√n

²√n	4599.6725970443
³√n	276.57820045354
⁴√n	67.820886141691
⁵√n	29.180368226517

Divisors of 21156988

1, 2, 4, 5289247, 10578494, 21156988

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21156987	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21156988 can be divided by 6 positive divisors. The sum of these divisors (counting 21156988) is 1, the average is 0.16666666666667.

Base conversion 21156988

Base	System	Value
2	Binary	1010000101101010001111100
3	Ternary	1110210212221011
4	Quaternary	1100231101330
5	Quinary	20404010423
6	Senary	2033245004
8	Octal	120552174
10	Decimal	21156988
12	Duodecimal	7103764
16	Hexadecimal	142d47c
20	Vigesimal	6c4c98
36	Base36	clgu4

Cryptographic Hash Functions

md5	8c9b303ba88e84acf8d4e76f940ef167
sha1	880dbdc00b0ba9e2ace1d88928659735c82d88bb
sha256	8c9e4ca4cc478152b6ffdafa115dcaeb7cffcf091f74a2aae336caf6e22da791
sha512	ff6f876dda1bde7cfaa8e78a5700604fbb7ab43fe9876850d9ca807f4f4a966ca257a334bd1b92f0018a6e669706c1ba7a45d826a75aea4daff2c15fc3b8c960
ripemd-160	f1ef8642b3c3969b7516342875eb95e6668f538f

21156988 as geometric shapes

Circle

Radius = n

Diameter	42313976
Circumference	132933276.14577
Area	1.4062338641084E+15

Sphere

Radius = n

Volume	3.9668897317514E+22
Surface area	5.6249354564337E+15
Circumference	132933276.14577

Square

Length = n

Perimeter	84627952
Area	447618141232144
Diagonal	29920499.368565

Cube

Length = n

Surface area	2685708847392864
Volume	9.4702516426308E+21
Space diagonal	36644978.151125

Equilateral Triangle

Length = n

Perimeter	63470964
Area	1.938243407509E+14
Altitude	18322489.075563

Triangular Pyramid

Length = n

Surface area	1.938243407509E+14
Volume	1.1160798593412E+21
Height	9973499.7895216