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

20181397 (number)

20181397 is an odd 8-digits composite number following 20181396 and preceding 20181398. In scientific notation, it is written as 2.0181397 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 18994240 positive integers (up to 20181397) that are relatively prime to 20181397.

Interesting facts

20181397 has 4 divisors, whose sum is 21368556
The reverse of 20181397 is 79318102
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

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

Notation

Scientific notation	2.0181397 × 10^7
Engineering notation	2.0181397 × 10^6

Prime Factorization of 20181397

Prime Factorization 17 × 1187141

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20181397	Product of the distinct prime numbers

The prime factorization of 20181397 is 17 × 1187141. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 2, 17, 80, 345, 394, 8437, 9253, 22055, 87465, 140991, 529210, 3807555, 1693071, 41060653, 84532629, 370953006, 128144511, 9321822498, 4081500702

Basic calculations (n = 20181397)

Multiplication

n×y

n×2	40362794
n×3	60544191
n×4	80725588
n×5	100906985

Division

n÷y

n÷2	10090698.5
n÷3	6727132.3333333
n÷3	5045349.25
n÷5	4036279.4

Exponentiation

n^y

n²	407288784871609
n³	8.2196566611415E+21
n⁴	1.6588415428219E+29
n⁵	3.3477739735782E+36

Nth Root

^y√n

²√n	4492.3709775574
³√n	272.25993839647
⁴√n	67.025151827932
⁵√n	28.906149544524

Divisors of 20181397

1, 17, 1187141, 20181397

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	-20181396	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 20181397 can be divided by 4 positive divisors. The sum of these divisors (counting 20181397) is 1, the average is 0.25.

Base conversion 20181397

Base	System	Value
2	Binary	1001100111111000110010101
3	Ternary	1101222022200011
4	Quaternary	1030333012111
5	Quinary	20131301042
6	Senary	2000320221
8	Octal	114770625
10	Decimal	20181397
12	Duodecimal	6913071
16	Hexadecimal	133f195
20	Vigesimal	662d9h
36	Base36	c0k2d

Cryptographic Hash Functions

md5	b5fc58e8550cad65e874b2a859c9e948
sha1	f863b8bc2042799ef278f0a98c075283ed44f2de
sha256	d866918e6f5c6790e15444421966cb93163388822e50d598b2b3fdcfb5638545
sha512	0511b944303cebd750e3de8eeebe9e47a74474647f291e1e7d5be2545925164b7eb2031a8253be7bc96fbed219fe9984a1641dcd8dc93f0468497c3388dad18f
ripemd-160	75a3a8541b52319dc1a27fa67db038e507ead201

20181397 as geometric shapes

Circle

Radius = n

Diameter	40362794
Circumference	126803457.10876
Area	1.2795354544422E+15

Sphere

Radius = n

Volume	3.4430417308897E+22
Surface area	5.1181418177686E+15
Circumference	126803457.10876

Square

Length = n

Perimeter	80725588
Area	407288784871609
Diagonal	28540805.345036

Cube

Length = n

Surface area	2443732709229654
Volume	8.2196566611415E+21
Space diagonal	34955204.971718

Equilateral Triangle

Length = n

Perimeter	60544191
Area	1.7636121718765E+14
Altitude	17477602.485859

Triangular Pyramid

Length = n

Surface area	1.7636121718765E+14
Volume	9.6869582735306E+20
Height	9513601.7816786