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

21087842 (number)

21087842 is an even 8-digits composite number following 21087841 and preceding 21087843. In scientific notation, it is written as 2.1087842 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 10460772 positive integers (up to 21087842) that are relatively prime to 21087842.

Interesting facts

21087842 has 8 divisors, whose sum is 31881216
The reverse of 21087842 is 24878012
Previous prime number is 127

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twenty-one million eighty-seven thousand eight hundred forty-two

Notation

Scientific notation	2.1087842 × 10^7
Engineering notation	2.1087842 × 10^6

Prime Factorization of 21087842

Prime Factorization 2 × 127 × 83023

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21087842	Product of the distinct prime numbers

The prime factorization of 21087842 is 2 × 127 × 83023. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 78, 4, 290, 187, 4645, 9401, 73959, 5306, 125311, 276718, 8099705, 3124701, 64782952, 10438244, 268129342, 984880258, 3754653933, 7625894095

Basic calculations (n = 21087842)

Multiplication

n×y

n×2	42175684
n×3	63263526
n×4	84351368
n×5	105439210

Division

n÷y

n÷2	10543921
n÷3	7029280.6666667
n÷3	5271960.5
n÷5	4217568.4

Exponentiation

n^y

n²	444697080216964
n³	9.3777017654767E+21
n⁴	1.9775549315349E+29
n⁵	4.1702365942529E+36

Nth Root

^y√n

²√n	4592.1500411028
³√n	276.27656412788
⁴√n	67.765404456129
⁵√n	29.161269584877

Divisors of 21087842

1, 2, 127, 254, 83023, 166046, 10543921, 21087842

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	-21087841	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 21087842 can be divided by 8 positive divisors. The sum of these divisors (counting 21087842) is 1, the average is 0.125.

Base conversion 21087842

Base	System	Value
2	Binary	1010000011100011001100010
3	Ternary	1110200101002012
4	Quaternary	1100130121202
5	Quinary	20344302332
6	Senary	2031552522
8	Octal	120343142
10	Decimal	21087842
12	Duodecimal	708b742
16	Hexadecimal	141c662
20	Vigesimal	6bfjc2
36	Base36	cjzhe

Cryptographic Hash Functions

md5	d541f466e58ee4593a43ab4bfa28b93e
sha1	96c6b017a000c63dcade7bb896942ad70a217194
sha256	1511138a3ad3de4a27e0044b5a408554304ddd0a930b4660b7677178fb97997d
sha512	5f96a7ee0c2e143db3fe898abcab6ced08e9acd013871e0e4b5ca922d2c2a24b61d1bcdf66d180d29225d9f36746f59ba906b08ae089df3cf8d3f4ed6a158e79
ripemd-160	f4f98e8a2f70e3ba7871e97c218348dcdbaecd68

21087842 as geometric shapes

Circle

Radius = n

Diameter	42175684
Circumference	132498819.01452
Area	1.3970570802824E+15

Sphere

Radius = n

Volume	3.9281225298637E+22
Surface area	5.5882283211298E+15
Circumference	132498819.01452

Square

Length = n

Perimeter	84351368
Area	444697080216964
Diagonal	29822712.157581

Cube

Length = n

Surface area	2668182481301784
Volume	9.3777017654767E+21
Space diagonal	36525213.765985

Equilateral Triangle

Length = n

Perimeter	63263526
Area	1.9255948422833E+14
Altitude	18262606.882992

Triangular Pyramid

Length = n

Surface area	1.9255948422833E+14
Volume	1.1051727517189E+21
Height	9940904.052527