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

21087983 (number)

21087983 is an odd 8-digits composite number following 21087982 and preceding 21087984. In scientific notation, it is written as 2.1087983 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 10 positive divisors. There are 18073356 positive integers (up to 21087983) that are relatively prime to 21087983.

Interesting facts

21087983 has 10 divisors, whose sum is 24603984
The reverse of 21087983 is 38978012
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

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

Notation

Scientific notation	2.1087983 × 10^7
Engineering notation	2.1087983 × 10^6

Prime Factorization of 21087983

Prime Factorization 7 × 7 × 7 × 7 × 8783

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	61481	Product of the distinct prime numbers

The prime factorization of 21087983 is 7 × 7 × 7 × 7 × 8783. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 5, 76, 29, 952, 665, 7454, 5073, 79270, 14025, 899183, 3469, 676282, 9215052, 32363522, 23623191, 639273050, 181238385, 113402039, 8600430901

Basic calculations (n = 21087983)

Multiplication

n×y

n×2	42175966
n×3	63263949
n×4	84351932
n×5	105439915

Division

n÷y

n÷2	10543991.5
n÷3	7029327.6666667
n÷3	5271995.75
n÷5	4217596.6

Exponentiation

n^y

n²	444703027008289
n³	9.3778898735993E+21
n⁴	1.9776078223034E+29
n⁵	4.17037601374E+36

Nth Root

^y√n

²√n	4592.1653933629
³√n	276.27717988409
⁴√n	67.765517731092
⁵√n	29.161308581072

Divisors of 21087983

1, 7, 49, 343, 2401, 8783, 61481, 430367, 3012569, 21087983

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	-21087982	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 21087983 can be divided by 10 positive divisors. The sum of these divisors (counting 21087983) is 1, the average is 0.1.

Base conversion 21087983

Base	System	Value
2	Binary	1010000011100011011101111
3	Ternary	1110200101021102
4	Quaternary	1100130123233
5	Quinary	20344303413
6	Senary	2031553315
8	Octal	120343357
10	Decimal	21087983
12	Duodecimal	708b83b
16	Hexadecimal	141c6ef
20	Vigesimal	6bfjj3
36	Base36	cjzlb

Cryptographic Hash Functions

md5	d640a929e19fd84aeb8ff73ef5e5b4c0
sha1	b8fd9da32332f54fb25ddfec8b2f8df47fcae266
sha256	213f4d63a37c9672c49302ce920039f4176a17525fee33f874230e826b32461c
sha512	5ef193b7614f952dce39e60aa687828e109d090a10c080862c00eb129b5883b40a868f85dc5510542c2507e7e68419ff8d1b3a2c2ef354170e2b59c12b97305e
ripemd-160	00c49ee5d31d7d6c99c80a9231dd00db8621b42a

21087983 as geometric shapes

Circle

Radius = n

Diameter	42175966
Circumference	132499704.94365
Area	1.3970757626784E+15

Sphere

Radius = n

Volume	3.9282013244098E+22
Surface area	5.5883030507135E+15
Circumference	132499704.94365

Square

Length = n

Perimeter	84351932
Area	444703027008289
Diagonal	29822911.561693

Cube

Length = n

Surface area	2668218162049734
Volume	9.3778898735993E+21
Space diagonal	36525457.985149

Equilateral Triangle

Length = n

Perimeter	63263949
Area	1.9256205926451E+14
Altitude	18262728.992574

Triangular Pyramid

Length = n

Surface area	1.9256205926451E+14
Volume	1.1051949204738E+21
Height	9940970.5205644