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

20181381 (number)

20181381 is an odd 8-digits composite number following 20181380 and preceding 20181382. In scientific notation, it is written as 2.0181381 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 12231120 positive integers (up to 20181381) that are relatively prime to 20181381.

Interesting facts

20181381 has 8 divisors, whose sum is 29354784
The reverse of 20181381 is 18318102
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

Name	twenty million one hundred eighty-one thousand three hundred eighty-one

Notation

Scientific notation	2.0181381 × 10^7
Engineering notation	2.0181381 × 10^6

Prime Factorization of 20181381

Prime Factorization 3 × 11 × 611557

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20181381	Product of the distinct prime numbers

The prime factorization of 20181381 is 3 × 11 × 611557. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 2, 87, 7, 509, 766, 6429, 8194, 24683, 45948, 68360, 666465, 5858716, 67413, 87323229, 87944184, 762717175, 519362455, 5182023098, 1268096915

Basic calculations (n = 20181381)

Multiplication

n×y

n×2	40362762
n×3	60544143
n×4	80725524
n×5	100906905

Division

n÷y

n÷2	10090690.5
n÷3	6727127
n÷3	5045345.25
n÷5	4036276.2

Exponentiation

n^y

n²	407288139067161
n³	8.2196371112954E+21
n⁴	1.6588362822479E+29
n⁵	3.3477607028669E+36

Nth Root

^y√n

²√n	4492.3691967602
³√n	272.25986644638
⁴√n	67.025138543387
⁵√n	28.90614496111

Divisors of 20181381

1, 3, 11, 33, 611557, 1834671, 6727127, 20181381

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	-20181380	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 20181381 can be divided by 8 positive divisors. The sum of these divisors (counting 20181381) is 1, the average is 0.125.

Base conversion 20181381

Base	System	Value
2	Binary	1001100111111000110000101
3	Ternary	1101222022122120
4	Quaternary	1030333012011
5	Quinary	20131301011
6	Senary	2000320153
8	Octal	114770605
10	Decimal	20181381
12	Duodecimal	6913059
16	Hexadecimal	133f185
20	Vigesimal	662d91
36	Base36	c0k1x

Cryptographic Hash Functions

md5	f8bf2699da2666fa00e95f627fe815e8
sha1	9a3c75203a8f0bd22d4d9fca5e7c731468215d15
sha256	40173bec1ff1de5fa2444d8147780eabd873b8dcedccd843b72b6216c3241a47
sha512	69356eec44f189944a24b70eb7756693b2bc7fdd5031d6d9826b3d3bbde0f255a1cf1dd01c4cc9cb75d9212200d4ca2de2f683a93de0e2468a7e01c1a15dd31f
ripemd-160	48d84e96b25cb315a5982cafe9597682795315f7

20181381 as geometric shapes

Circle

Radius = n

Diameter	40362762
Circumference	126803356.57779
Area	1.2795334255877E+15

Sphere

Radius = n

Volume	3.4430335418693E+22
Surface area	5.1181337023506E+15
Circumference	126803356.57779

Square

Length = n

Perimeter	80725524
Area	407288139067161
Diagonal	28540782.717619

Cube

Length = n

Surface area	2443728834402966
Volume	8.2196371112954E+21
Space diagonal	34955177.258905

Equilateral Triangle

Length = n

Perimeter	60544143
Area	1.7636093754613E+14
Altitude	17477588.629453

Triangular Pyramid

Length = n

Surface area	1.7636093754613E+14
Volume	9.6869352338159E+20
Height	9513594.2392062