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

21356987 (number)

21356987 is an odd 8-digits composite number following 21356986 and preceding 21356988. In scientific notation, it is written as 2.1356987 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 20889000 positive integers (up to 21356987) that are relatively prime to 21356987.

Interesting facts

21356987 has 8 divisors, whose sum is 21829632
The reverse of 21356987 is 78965312
Previous prime number is 151

Basic properties

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

Name

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

Notation

Scientific notation	2.1356987 × 10^7
Engineering notation	2.1356987 × 10^6

Prime Factorization of 21356987

Prime Factorization 67 × 151 × 2111

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21356987	Product of the distinct prime numbers

The prime factorization of 21356987 is 67 × 151 × 2111. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 2, 56, 34, 485, 875, 9356, 765, 54410, 77086, 689978, 126757, 5755306, 8884861, 63341359, 8841795, 25221643, 951109487, 5387920624, 5850065089

Basic calculations (n = 21356987)

Multiplication

n×y

n×2	42713974
n×3	64070961
n×4	85427948
n×5	106784935

Division

n÷y

n÷2	10678493.5
n÷3	7118995.6666667
n÷3	5339246.75
n÷5	4271397.4

Exponentiation

n^y

n²	456120893718169
n³	9.7413679975673E+21
n⁴	2.0804626968626E+29
n⁵	4.443241477088E+36

Nth Root

^y√n

²√n	4621.3620286664
³√n	277.4469752324
⁴√n	67.980600384716
⁵√n	29.235329748781

Divisors of 21356987

1, 67, 151, 2111, 10117, 141437, 318761, 21356987

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	-21356986	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 21356987 can be divided by 8 positive divisors. The sum of these divisors (counting 21356987) is 1, the average is 0.125.

Base conversion 21356987

Base	System	Value
2	Binary	1010001011110000110111011
3	Ternary	1111012001021112
4	Quaternary	1101132012323
5	Quinary	20431410422
6	Senary	2041430535
8	Octal	121360673
10	Decimal	21356987
12	Duodecimal	719b44b
16	Hexadecimal	145e1bb
20	Vigesimal	6d9c97
36	Base36	cpr5n

Cryptographic Hash Functions

md5	9ab35b3e8659cff9a4b8fece119c243d
sha1	0dd4e906f6523c4599d77fcb6e599da711d820f4
sha256	da512b14cb8c80534d5234f7e30e39e151b4108ff17f1df40e85c7409f9842cd
sha512	57f2997355c4971b155bb6871e34190fe7159e0e82e130db28dc8e1c6d202d8aebc507080b24d3c20f6eaf2c0908181f753acd5eaac43b61c16fc9dd773be3dd
ripemd-160	b0add1b7e2aa857bb35bc5f820dbebdfe894b240

21356987 as geometric shapes

Circle

Radius = n

Diameter	42713974
Circumference	134189906.92403
Area	1.4329460488538E+15

Sphere

Radius = n

Volume	4.080454684943E+22
Surface area	5.7317841954152E+15
Circumference	134189906.92403

Square

Length = n

Perimeter	85427948
Area	456120893718169
Diagonal	30203340.666826

Cube

Length = n

Surface area	2736725362309014
Volume	9.7413679975673E+21
Space diagonal	36991386.580588

Equilateral Triangle

Length = n

Perimeter	64070961
Area	1.975061405784E+14
Altitude	18495693.290294

Triangular Pyramid

Length = n

Surface area	1.975061405784E+14
Volume	1.1480312281856E+21
Height	10067780.222275