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

21369987 (number)

21369987 is an odd 8-digits composite number following 21369986 and preceding 21369988. In scientific notation, it is written as 2.1369987 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 10 positive divisors. There are 14246604 positive integers (up to 21369987) that are relatively prime to 21369987.

Interesting facts

21369987 has 10 divisors, whose sum is 31923188
The reverse of 21369987 is 78996312
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	twenty-one million three hundred sixty-nine thousand nine hundred eighty-seven

Notation

Scientific notation	2.1369987 × 10^7
Engineering notation	2.1369987 × 10^6

Prime Factorization of 21369987

Prime Factorization 3 × 3 × 3 × 3 × 263827

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	791481	Product of the distinct prime numbers

The prime factorization of 21369987 is 3 × 3 × 3 × 3 × 263827. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 1, 15, 23, 632, 403, 8288, 4189, 86596, 91944, 414983, 478890, 4502668, 6186378, 9984566, 46009461, 218335682, 675651275, 9671589523, 2139903729

Basic calculations (n = 21369987)

Multiplication

n×y

n×2	42739974
n×3	64109961
n×4	85479948
n×5	106849935

Division

n÷y

n÷2	10684993.5
n÷3	7123329
n÷3	5342496.75
n÷5	4273997.4

Exponentiation

n^y

n²	456676344380169
n³	9.7591675426117E+21
n⁴	2.0855328351643E+29
n⁵	4.4567809575535E+36

Nth Root

^y√n

²√n	4622.7683264468
³√n	277.5032578142
⁴√n	67.990942973655
⁵√n	29.23888799212

Divisors of 21369987

1, 3, 9, 27, 81, 263827, 791481, 2374443, 7123329, 21369987

10 divisors

τ	Total Divisors	10	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21369986	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.1	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	10	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21369987 can be divided by 10 positive divisors. The sum of these divisors (counting 21369987) is 1, the average is 0.1.

Base conversion 21369987

Base	System	Value
2	Binary	1010001100001010010000011
3	Ternary	1111012201010000
4	Quaternary	1101201102003
5	Quinary	20432314422
6	Senary	2042011043
8	Octal	121412203
10	Decimal	21369987
12	Duodecimal	71a6a83
16	Hexadecimal	1461483
20	Vigesimal	6db4j7
36	Base36	cq16r

Cryptographic Hash Functions

md5	0e1e81d7298035fed08f81a68aa0a539
sha1	c272c3084e52c4967a6bafafce1d87d2060ccdf0
sha256	862ee07ad7ed7cc95de505b8d20f87bb415bf42a574e70aad244eab9640940cd
sha512	2c4eb8f5eeb33cfd4ae5b4227be7f29a3f90d7f0d9cfeb5b8bc255896515d41d15baeca298034b56e19d5a69458914e75d07db5cdb1f5d4424a6dbeba56b9a5a
ripemd-160	87cbb4971c11c57e9852b7a50c74a902d8fd04d4

21369987 as geometric shapes

Circle

Radius = n

Diameter	42739974
Circumference	134271588.33302
Area	1.434691048573E+15

Sphere

Radius = n

Volume	4.0879105409361E+22
Surface area	5.7387641942919E+15
Circumference	134271588.33302

Square

Length = n

Perimeter	85479948
Area	456676344380169
Diagonal	30221725.443137

Cube

Length = n

Surface area	2740058066281014
Volume	9.7591675426117E+21
Space diagonal	37013903.241086

Equilateral Triangle

Length = n

Perimeter	64109961
Area	1.9774665777032E+14
Altitude	18506951.620543

Triangular Pyramid

Length = n

Surface area	1.9774665777032E+14
Volume	1.1501289246861E+21
Height	10073908.481046