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

21087949 (number)

21087949 is an odd 8-digits prime number following 21087948 and preceding 21087950. In scientific notation, it is written as 2.1087949 × 10^7. The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors. There are 21087948 positive integers (up to 21087949) that are relatively prime to 21087949.

Interesting facts

21087949 has 2 divisors, whose sum is 21087950
The reverse of 21087949 is 94978012
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	2.1087949 × 10^7
Engineering notation	2.1087949 × 10^6

Prime Factorization of 21087949

Prime Factorization 21087949

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21087949	Product of the distinct prime numbers

The prime factorization of 21087949 is 21087949. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 1, 96, 35, 281, 215, 333, 1915, 94293, 9825, 728835, 480884, 8723607, 6387650, 4502291, 70238957, 304616004, 961928192, 1891620055, 7894153528

Basic calculations (n = 21087949)

Multiplication

n×y

n×2	42175898
n×3	63263847
n×4	84351796
n×5	105439745

Division

n÷y

n÷2	10543974.5
n÷3	7029316.3333333
n÷3	5271987.25
n÷5	4217589.8

Exponentiation

n^y

n²	444701593026601
n³	9.3778445139637E+21
n⁴	1.977595068404E+29
n⁵	4.1703423945154E+36

Nth Root

^y√n

²√n	4592.1616914042
³√n	276.27703140412
⁴√n	67.765490416614
⁵√n	29.161299177753

Divisors of 21087949

1, 21087949

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21087950	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10543975	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4592.1618002854	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999051591	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087949 can be divided by 2 positive divisors. The sum of these divisors (counting 21087949) is 21087950, the average is 10543975.

Base conversion 21087949

Base	System	Value
2	Binary	1010000011100011011001101
3	Ternary	1110200101020011
4	Quaternary	1100130123031
5	Quinary	20344303244
6	Senary	2031553221
8	Octal	120343315
10	Decimal	21087949
12	Duodecimal	708b811
16	Hexadecimal	141c6cd
20	Vigesimal	6bfjh9
36	Base36	cjzkd

Cryptographic Hash Functions

md5	0e4e97be92483e8d6ea1a4431cce4777
sha1	e22a6fd6e3b8a78d137ed41c1d7d22defadffcf2
sha256	b405a573bcf818e803347610968db2141764cae912b1aeb007c9dffdd3e02ed5
sha512	1882daf9ecf974c1089feb36762f86b208a1dc3f1e929a098a194c1b814d82dfabdc1a37acfc5a90abd2741e1d4bad1accc2f3b364a730fa470e40d8f10a3700
ripemd-160	fb23bc61af928345a87d968c686fa1e1159fb0bb

21087949 as geometric shapes

Circle

Radius = n

Diameter	42175898
Circumference	132499491.31535
Area	1.397071257692E+15

Sphere

Radius = n

Volume	3.9281823242101E+22
Surface area	5.5882850307682E+15
Circumference	132499491.31535

Square

Length = n

Perimeter	84351796
Area	444701593026601
Diagonal	29822863.478432

Cube

Length = n

Surface area	2668209558159606
Volume	9.3778445139637E+21
Space diagonal	36525399.095421

Equilateral Triangle

Length = n

Perimeter	63263847
Area	1.9256143833222E+14
Altitude	18262699.547711

Triangular Pyramid

Length = n

Surface area	1.9256143833222E+14
Volume	1.1051895747895E+21
Height	9940954.4928107