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

21497947 (number)

21497947 is an odd 8-digits composite number following 21497946 and preceding 21497948. In scientific notation, it is written as 2.1497947 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 21443400 positive integers (up to 21497947) that are relatively prime to 21497947.

Interesting facts

21497947 has 4 divisors, whose sum is 21552496
The reverse of 21497947 is 74979412
Previous prime number is 397

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	twenty-one million four hundred ninety-seven thousand nine hundred forty-seven

Notation

Scientific notation	2.1497947 × 10^7
Engineering notation	2.1497947 × 10^6

Prime Factorization of 21497947

Prime Factorization 397 × 54151

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21497947	Product of the distinct prime numbers

The prime factorization of 21497947 is 397 × 54151. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 1, 84, 96, 817, 808, 6392, 4114, 67753, 3140, 296613, 450460, 5083965, 8293939, 59902271, 88723922, 215608891, 581046904, 4253687388, 9924410438

Basic calculations (n = 21497947)

Multiplication

n×y

n×2	42995894
n×3	64493841
n×4	85991788
n×5	107489735

Division

n÷y

n÷2	10748973.5
n÷3	7165982.3333333
n÷3	5374486.75
n÷5	4299589.4

Exponentiation

n^y

n²	462161725214809
n³	9.9355282740965E+21
n⁴	2.1359346025353E+29
n⁵	4.591820888077E+36

Nth Root

^y√n

²√n	4636.5878617794
³√n	278.05603738983
⁴√n	68.092494900535
⁵√n	29.273819964621

Divisors of 21497947

1, 397, 54151, 21497947

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	-21497946	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 21497947 can be divided by 4 positive divisors. The sum of these divisors (counting 21497947) is 1, the average is 0.25.

Base conversion 21497947

Base	System	Value
2	Binary	1010010000000100001011011
3	Ternary	1111110012122021
4	Quaternary	1102000201123
5	Quinary	21000413242
6	Senary	2044435311
8	Octal	122004133
10	Decimal	21497947
12	Duodecimal	7248b37
16	Hexadecimal	148085b
20	Vigesimal	6e74h7
36	Base36	csrx7

Cryptographic Hash Functions

md5	5013cabd027701effa45f44939f0fb5f
sha1	477c5e5b63f59abcca6305d09f5c0f10d33d323d
sha256	3dc939e0094bba9d1ab709e437891d2b9e4fff26c8f93001b6aa34941f759f0d
sha512	00baf061d9bf86b271f7146e5b91783bd69a2970f0de9fe3d343e03e2afe6873021aa8eaf75e4cb94797fc89384948e41b8a37d0f4d81ff6edfa1754f72bcc3c
ripemd-160	53cad653a767bdffc76f295629c470d66fa824d4

21497947 as geometric shapes

Circle

Radius = n

Diameter	42995894
Circumference	135075584.72493
Area	1.4519238807052E+15

Sphere

Radius = n

Volume	4.1617843513914E+22
Surface area	5.8076955228209E+15
Circumference	135075584.72493

Square

Length = n

Perimeter	85991788
Area	462161725214809
Diagonal	30402688.210578

Cube

Length = n

Surface area	2772970351288854
Volume	9.9355282740965E+21
Space diagonal	37235536.462423

Equilateral Triangle

Length = n

Perimeter	64493841
Area	2.0012189734643E+14
Altitude	18617768.231211

Triangular Pyramid

Length = n

Surface area	2.0012189734643E+14
Volume	1.1709132362141E+21
Height	10134229.403526