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

20921487 (number)

20921487 is an odd 8-digits composite number following 20921486 and preceding 20921488. In scientific notation, it is written as 2.0921487 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 13739352 positive integers (up to 20921487) that are relatively prime to 20921487.

Interesting facts

20921487 has 8 divisors, whose sum is 28311936
The reverse of 20921487 is 78412902
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

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

Notation

Scientific notation	2.0921487 × 10^7
Engineering notation	2.0921487 × 10^6

Prime Factorization of 20921487

Prime Factorization 3 × 67 × 104087

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20921487	Product of the distinct prime numbers

The prime factorization of 20921487 is 3 × 67 × 104087. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 10, 97, 56, 75, 690, 6462, 5587, 50996, 47906, 379816, 528381, 8497420, 6257712, 84768786, 96427262, 649490874, 801734643, 2926228534, 940409043

Basic calculations (n = 20921487)

Multiplication

n×y

n×2	41842974
n×3	62764461
n×4	83685948
n×5	104607435

Division

n÷y

n÷2	10460743.5
n÷3	6973829
n÷3	5230371.75
n÷5	4184297.4

Exponentiation

n^y

n²	437708618291169
n³	9.1575151673667E+21
n⁴	1.9158883452636E+29
n⁵	4.0083233108885E+36

Nth Root

^y√n

²√n	4574.0012024485
³√n	275.54816061373
⁴√n	67.63136256537
⁵√n	29.115114995716

Divisors of 20921487

1, 3, 67, 201, 104087, 312261, 6973829, 20921487

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	-20921486	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 20921487 can be divided by 8 positive divisors. The sum of these divisors (counting 20921487) is 1, the average is 0.125.

Base conversion 20921487

Base	System	Value
2	Binary	1001111110011110010001111
3	Ternary	1110100220212220
4	Quaternary	1033303302033
5	Quinary	20323441422
6	Senary	2024230423
8	Octal	117636217
10	Decimal	20921487
12	Duodecimal	700b413
16	Hexadecimal	13f3c8f
20	Vigesimal	6af3e7
36	Base36	cgf4f

Cryptographic Hash Functions

md5	c2db51bbea87705e0afeb31536b7e945
sha1	3a847133e108a913744e35adc125b3d985b7ef18
sha256	ce51028c9f0844aa12e9b86f9db9704b9436fb3b3af90a8db4c5ea67e96a2ae9
sha512	6d60801353f6b805906d1d74ec37e87417cd0185cfd370f318cc09d1ccc24b6e7e0a63611f2e1b95fc9689887c22241401d008eb62c5a41be61e171e40435bb9
ripemd-160	0c38cb08269c6c238282b0851f9f9d7ea4ff67b3

20921487 as geometric shapes

Circle

Radius = n

Diameter	41842974
Circumference	131453579.72275
Area	1.3751021796365E+15

Sphere

Radius = n

Volume	3.8358909833248E+22
Surface area	5.5004087185459E+15
Circumference	131453579.72275

Square

Length = n

Perimeter	83685948
Area	437708618291169
Diagonal	29587450.660412

Cube

Length = n

Surface area	2626251709747014
Volume	9.1575151673667E+21
Space diagonal	36237078.453892

Equilateral Triangle

Length = n

Perimeter	62764461
Area	1.8953339144777E+14
Altitude	18118539.226946

Triangular Pyramid

Length = n

Surface area	1.8953339144777E+14
Volume	1.0792235122773E+21
Height	9862483.5534708