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

21431491 (number)

21431491 is an odd 8-digits composite number following 21431490 and preceding 21431492. In scientific notation, it is written as 2.1431491 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 20981928 positive integers (up to 21431491) that are relatively prime to 21431491.

Interesting facts

21431491 has 8 divisors, whose sum is 21885120
The reverse of 21431491 is 19413412
Previous prime number is 179

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twenty-one million four hundred thirty-one thousand four hundred ninety-one

Notation

Scientific notation	2.1431491 × 10^7
Engineering notation	2.1431491 × 10^6

Prime Factorization of 21431491

Prime Factorization 67 × 179 × 1787

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21431491	Product of the distinct prime numbers

The prime factorization of 21431491 is 67 × 179 × 1787. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 7, 44, 17, 225, 676, 9395, 4491, 32886, 78299, 277099, 259497, 8621742, 1064155, 67106909, 36240994, 431323529, 791526124, 8309185597, 2694193793

Basic calculations (n = 21431491)

Multiplication

n×y

n×2	42862982
n×3	64294473
n×4	85725964
n×5	107157455

Division

n÷y

n÷2	10715745.5
n÷3	7143830.3333333
n÷3	5357872.75
n÷5	4286298.2

Exponentiation

n^y

n²	459308806483081
n³	9.8436725523629E+21
n⁴	2.1096457971291E+29
n⁵	4.5212854914361E+36

Nth Root

^y√n

²√n	4629.4158378785
³√n	277.76922604191
⁴√n	68.039810683735
⁵√n	29.255698876304

Divisors of 21431491

1, 67, 179, 1787, 11993, 119729, 319873, 21431491

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	-21431490	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 21431491 can be divided by 8 positive divisors. The sum of these divisors (counting 21431491) is 1, the average is 0.125.

Base conversion 21431491

Base	System	Value
2	Binary	1010001110000010011000011
3	Ternary	1111022211110221
4	Quaternary	1101300103003
5	Quinary	20441301431
6	Senary	2043203511
8	Octal	121602303
10	Decimal	21431491
12	Duodecimal	7216597
16	Hexadecimal	14704c3
20	Vigesimal	6diieb
36	Base36	crcn7

Cryptographic Hash Functions

md5	c667761fd105156e3d4ee921c94d6521
sha1	886e532217b4ab24d30d438e088b9f56ab36bcc5
sha256	184ec8413a033db0f93de17c3e429d9671ef1d30f4cd3f8cd88ff79a0c1c811f
sha512	d695a2e9bb1e933174cbdd1a90b1a9e7399c85934ab1a84ee1e2cc32c12993a718f40671eed1f289f3e9d5d7b0aab895dd6406012656a40d1e5a8e4d752381e6
ripemd-160	3766e0495881db23c98b39697c1e33870d9739a5

21431491 as geometric shapes

Circle

Radius = n

Diameter	42862982
Circumference	134658029.36215
Area	1.4429611721763E+15

Sphere

Radius = n

Volume	4.1233079166462E+22
Surface area	5.7718446887054E+15
Circumference	134658029.36215

Square

Length = n

Perimeter	85725964
Area	459308806483081
Diagonal	30308705.234077

Cube

Length = n

Surface area	2755852838898486
Volume	9.8436725523629E+21
Space diagonal	37120431.293955

Equilateral Triangle

Length = n

Perimeter	64294473
Area	1.9888654729813E+14
Altitude	18560215.646978

Triangular Pyramid

Length = n

Surface area	1.9888654729813E+14
Volume	1.1600879355926E+21
Height	10102901.744692