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

21388237 (number)

21388237 is an odd 8-digits composite number following 21388236 and preceding 21388238. In scientific notation, it is written as 2.1388237 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 19742976 positive integers (up to 21388237) that are relatively prime to 21388237.

Interesting facts

21388237 has 4 divisors, whose sum is 23033500
The reverse of 21388237 is 73288312
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty-one million three hundred eighty-eight thousand two hundred thirty-seven

Notation

Scientific notation	2.1388237 × 10^7
Engineering notation	2.1388237 × 10^6

Prime Factorization of 21388237

Prime Factorization 13 × 1645249

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21388237	Product of the distinct prime numbers

The prime factorization of 21388237 is 13 × 1645249. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 6, 1, 100, 953, 794, 4621, 8822, 25370, 23425, 665418, 116158, 3730473, 2953587, 66740242, 20449137, 951884344, 17875106, 3426585170, 1472617530

Basic calculations (n = 21388237)

Multiplication

n×y

n×2	42776474
n×3	64164711
n×4	85552948
n×5	106941185

Division

n÷y

n÷2	10694118.5
n÷3	7129412.3333333
n÷3	5347059.25
n÷5	4277647.4

Exponentiation

n^y

n²	457456681968169
n³	9.7841919311688E+21
n⁴	2.0926661587733E+29
n⁵	4.4758439765722E+36

Nth Root

^y√n

²√n	4624.7418306323
³√n	277.5822313993
⁴√n	68.005454418247
⁵√n	29.243880297616

Divisors of 21388237

1, 13, 1645249, 21388237

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	-21388236	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 21388237 can be divided by 4 positive divisors. The sum of these divisors (counting 21388237) is 1, the average is 0.25.

Base conversion 21388237

Base	System	Value
2	Binary	1010001100101101111001101
3	Ternary	1111020122010221
4	Quaternary	1101211233031
5	Quinary	20433410422
6	Senary	2042231341
8	Octal	121455715
10	Decimal	21388237
12	Duodecimal	71b5551
16	Hexadecimal	1465bcd
20	Vigesimal	6ddabh
36	Base36	cqf9p

Cryptographic Hash Functions

md5	a8c75e41f60eabd111c0f6adceebb381
sha1	49c2e70273196c93f503f7aa784add4faeb29a71
sha256	1fcf742bc13cbf33a2374e8d26580c90577ae15b74880f4dbccfd7c42d2d6ade
sha512	81500da4389f75aa98b023db24d3434725d3b0f060532763d2b1585933f285fffb8f63f9fee7466a9034360d889e9c69e90b623d2e9d8aec53ba7a3668920cca
ripemd-160	a5ab16a83d170faab7c0973b519286943cd04d9b

21388237 as geometric shapes

Circle

Radius = n

Diameter	42776474
Circumference	134386256.46487
Area	1.4371425514068E+15

Sphere

Radius = n

Volume	4.098392732303E+22
Surface area	5.748570205627E+15
Circumference	134386256.46487

Square

Length = n

Perimeter	85552948
Area	457456681968169
Diagonal	30247534.84065

Cube

Length = n

Surface area	2744740091809014
Volume	9.7841919311688E+21
Space diagonal	37045513.168325

Equilateral Triangle

Length = n

Perimeter	64164711
Area	1.9808455385769E+14
Altitude	18522756.584162

Triangular Pyramid

Length = n

Surface area	1.9808455385769E+14
Volume	1.15307807716E+21
Height	10082511.61355