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

21490871 (number)

21490871 is an odd 8-digits composite number following 21490870 and preceding 21490872. In scientific notation, it is written as 2.1490871 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 21405000 positive integers (up to 21490871) that are relatively prime to 21490871.

Interesting facts

21490871 has 4 divisors, whose sum is 21576744
The reverse of 21490871 is 17809412
Previous prime number is 251

Basic properties

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

Name

Name	twenty-one million four hundred ninety thousand eight hundred seventy-one

Notation

Scientific notation	2.1490871 × 10^7
Engineering notation	2.1490871 × 10^6

Prime Factorization of 21490871

Prime Factorization 251 × 85621

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21490871	Product of the distinct prime numbers

The prime factorization of 21490871 is 251 × 85621. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 6, 41, 66, 218, 909, 3107, 7908, 18520, 93246, 867675, 965166, 5587114, 5950680, 34797237, 77073380, 812880904, 533802958, 3592898015, 6888539422

Basic calculations (n = 21490871)

Multiplication

n×y

n×2	42981742
n×3	64472613
n×4	85963484
n×5	107454355

Division

n÷y

n÷2	10745435.5
n÷3	7163623.6666667
n÷3	5372717.75
n÷5	4298174.2

Exponentiation

n^y

n²	461857536338641
n³	9.9257207338315E+21
n⁴	2.133123838728E+29
n⁵	4.5842689245128E+36

Nth Root

^y√n

²√n	4635.8247378433
³√n	278.02552687288
⁴√n	68.086891086635
⁵√n	29.271892628698

Divisors of 21490871

1, 251, 85621, 21490871

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	-21490870	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 21490871 can be divided by 4 positive divisors. The sum of these divisors (counting 21490871) is 1, the average is 0.25.

Base conversion 21490871

Base	System	Value
2	Binary	1010001111110110010110111
3	Ternary	1111102211221012
4	Quaternary	1101332302313
5	Quinary	21000201441
6	Senary	2044342435
8	Octal	121766267
10	Decimal	21490871
12	Duodecimal	7244a1b
16	Hexadecimal	147ecb7
20	Vigesimal	6e673b
36	Base36	csmgn

Cryptographic Hash Functions

md5	4149b0fa5c088bd852f1a508bc43416e
sha1	f5e5f97933b63ae271f95d79834f64c6e2b0c73e
sha256	cbe407a8268d5dc98349c2668387ffd819a18ed1bc220205fe840b0a5dc6da53
sha512	588dff237272cc37b5ff03873b081f95a2590d61fb1f09f2a57d681ca7ee61d41890155c391b102c0b4b5a1052b961c9f179284c507612d6edd47fa2414117c5
ripemd-160	b54b7ed712762f2c0b3eeaf9182ab8394176a7c8

21490871 as geometric shapes

Circle

Radius = n

Diameter	42981742
Circumference	135031124.90569
Area	1.4509682431666E+15

Sphere

Radius = n

Volume	4.1576761785319E+22
Surface area	5.8038729726662E+15
Circumference	135031124.90569

Square

Length = n

Perimeter	85963484
Area	461857536338641
Diagonal	30392681.235411

Cube

Length = n

Surface area	2771145218031846
Volume	9.9257207338315E+21
Space diagonal	37223280.470909

Equilateral Triangle

Length = n

Perimeter	64472613
Area	1.9999017969928E+14
Altitude	18611640.235454

Triangular Pyramid

Length = n

Surface area	1.9999017969928E+14
Volume	1.1697574065094E+21
Height	10130893.745137