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

20145987 (number)

20145987 is an odd 8-digits composite number following 20145986 and preceding 20145988. In scientific notation, it is written as 2.0145987 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 13331808 positive integers (up to 20145987) that are relatively prime to 20145987.

Interesting facts

20145987 has 8 divisors, whose sum is 22549200
The reverse of 20145987 is 78954102
Previous prime number is 137

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	twenty million one hundred forty-five thousand nine hundred eighty-seven

Notation

Scientific notation	2.0145987 × 10^7
Engineering notation	2.0145987 × 10^6

Prime Factorization of 20145987

Prime Factorization 9 × 137 × 16339

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20145987	Product of the distinct prime numbers

The prime factorization of 20145987 is 9 × 137 × 16339. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 36, 85, 581, 852, 2605, 7111, 92707, 55897, 475488, 463634, 9314485, 9833957, 22640651, 87939666, 133559075, 481862738, 8741907843, 3716807563

Basic calculations (n = 20145987)

Multiplication

n×y

n×2	40291974
n×3	60437961
n×4	80583948
n×5	100729935

Division

n÷y

n÷2	10072993.5
n÷3	6715329
n÷3	5036496.75
n÷5	4029197.4

Exponentiation

n^y

n²	405860792204169
n³	8.1764662435549E+21
n⁴	1.647229826486E+29
n⁵	3.3185070670398E+36

Nth Root

^y√n

²√n	4488.4281212915
³√n	272.10061066815
⁴√n	66.995732112512
⁵√n	28.895998751822

Divisors of 20145987

1, 9, 137, 1233, 16339, 147051, 2238443, 20145987

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	-20145986	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 20145987 can be divided by 8 positive divisors. The sum of these divisors (counting 20145987) is 1, the average is 0.125.

Base conversion 20145987

Base	System	Value
2	Binary	1001100110110011101000011
3	Ternary	1101220112002200
4	Quaternary	1030312131003
5	Quinary	20124132422
6	Senary	1555444243
8	Octal	114663503
10	Decimal	20145987
12	Duodecimal	68b6683
16	Hexadecimal	1336743
20	Vigesimal	65i4j7
36	Base36	bzsqr

Cryptographic Hash Functions

md5	9692537acf82b3c20a049c34cd99d803
sha1	3ceb205177bb0355beb3aa877abd568064db2259
sha256	f404ce0c3ee1e8c6c225b11798c3de8788423e3c150f827da99eb1f12d6a54c7
sha512	c605527b3581b8f9575774e7f365f2d09dba78588e2719d0fd12290d6116bb170982d17826a4831429404f573b6118d537a076ff385892b4c6f671025ab73cfc
ripemd-160	945e9c3e6268cc7eed7ee011c8eca4c3a299669b

20145987 as geometric shapes

Circle

Radius = n

Diameter	40291974
Circumference	126580969.51703
Area	1.2750492831688E+15

Sphere

Radius = n

Volume	3.4249501710769E+22
Surface area	5.100197132675E+15
Circumference	126580969.51703

Square

Length = n

Perimeter	80583948
Area	405860792204169
Diagonal	28490728.042792

Cube

Length = n

Surface area	2435164753225014
Volume	8.1764662435549E+21
Space diagonal	34893873.052622

Equilateral Triangle

Length = n

Perimeter	60437961
Area	1.7574287822444E+14
Altitude	17446936.526311

Triangular Pyramid

Length = n

Surface area	1.7574287822444E+14
Volume	9.6360578782676E+20
Height	9496909.3475974