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

21031961 (number)

21031961 is an odd 8-digits composite number following 21031960 and preceding 21031962. In scientific notation, it is written as 2.1031961 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 21017652 positive integers (up to 21031961) that are relatively prime to 21031961.

Interesting facts

21031961 has 4 divisors, whose sum is 21046272
The reverse of 21031961 is 16913012
Previous prime number is 1663

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty-one million thirty-one thousand nine hundred sixty-one

Notation

Scientific notation	2.1031961 × 10^7
Engineering notation	2.1031961 × 10^6

Prime Factorization of 21031961

Prime Factorization 1663 × 12647

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21031961	Product of the distinct prime numbers

The prime factorization of 21031961 is 1663 × 12647. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 2, 53, 911, 255, 6017, 3217, 30526, 35154, 134440, 332675, 5558428, 864514, 25390476, 65091998, 834322881, 8987669, 2654666530, 2119258312

Basic calculations (n = 21031961)

Multiplication

n×y

n×2	42063922
n×3	63095883
n×4	84127844
n×5	105159805

Division

n÷y

n÷2	10515980.5
n÷3	7010653.6666667
n÷3	5257990.25
n÷5	4206392.2

Exponentiation

n^y

n²	442343383505521
n³	9.3033487904962E+21
n⁴	1.9566766893111E+29
n⁵	4.1152747819201E+36

Nth Root

^y√n

²√n	4586.0616001096
³√n	276.03231173202
⁴√n	67.720466626491
⁵√n	29.145798196799

Divisors of 21031961

1, 1663, 12647, 21031961

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	-21031960	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 21031961 can be divided by 4 positive divisors. The sum of these divisors (counting 21031961) is 1, the average is 0.25.

Base conversion 21031961

Base	System	Value
2	Binary	1010000001110110000011001
3	Ternary	1110120112102112
4	Quaternary	1100032300121
5	Quinary	20341010321
6	Senary	2030442105
8	Octal	120166031
10	Decimal	21031961
12	Duodecimal	7063335
16	Hexadecimal	140ec19
20	Vigesimal	6b8ji1
36	Base36	cisd5

Cryptographic Hash Functions

md5	34ccdb1bff2730044f7203ea0f96bf64
sha1	999006e483e1f4d2d5a14771a253fa668baeeb25
sha256	00776ea9bab1f0983a00d324dec17acec6af545a672cc1d0e914338455adff49
sha512	56d90859fc1f961fe582d0472436e9eb902e7c9f7856a763541fef6da7b554840499698bdb3a4c12a03949b0ef97ab5348e7a1253f5fca7c01b3384b79d4517f
ripemd-160	e7aa07d916206e0414652f63de5e41d0100c9a49

21031961 as geometric shapes

Circle

Radius = n

Diameter	42063922
Circumference	132147708.33637
Area	1.389662723985E+15

Sphere

Radius = n

Volume	3.8969776285342E+22
Surface area	5.55865089594E+15
Circumference	132147708.33637

Square

Length = n

Perimeter	84127844
Area	442343383505521
Diagonal	29743684.489502

Cube

Length = n

Surface area	2654060301033126
Volume	9.3033487904962E+21
Space diagonal	36428425.034807

Equilateral Triangle

Length = n

Perimeter	63095883
Area	1.9154030365587E+14
Altitude	18214212.517404

Triangular Pyramid

Length = n

Surface area	1.9154030365587E+14
Volume	1.0964101695839E+21
Height	9914561.4965007