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

20180991 (number)

20180991 is an odd 8-digits composite number following 20180990 and preceding 20180992. In scientific notation, it is written as 2.0180991 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 13432320 positive integers (up to 20180991) that are relatively prime to 20180991.

Interesting facts

20180991 has 8 divisors, whose sum is 26951344
The reverse of 20180991 is 19908102
Previous prime number is 661

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	twenty million one hundred eighty thousand nine hundred ninety-one

Notation

Scientific notation	2.0180991 × 10^7
Engineering notation	2.0180991 × 10^6

Prime Factorization of 20180991

Prime Factorization 3 × 661 × 10177

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20180991	Product of the distinct prime numbers

The prime factorization of 20180991 is 3 × 661 × 10177. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 8, 48, 49, 831, 1, 8148, 5249, 99035, 32936, 781706, 299461, 4976027, 1753771, 99469740, 43994634, 161083091, 550593312, 3336194425, 513515423

Basic calculations (n = 20180991)

Multiplication

n×y

n×2	40361982
n×3	60542973
n×4	80723964
n×5	100904955

Division

n÷y

n÷2	10090495.5
n÷3	6726997
n÷3	5045247.75
n÷5	4036198.2

Exponentiation

n^y

n²	407272397742081
n³	8.2191605933814E+21
n⁴	1.6587080596258E+29
n⁵	3.3474372422937E+36

Nth Root

^y√n

²√n	4492.3257896105
³√n	272.2581126511
⁴√n	67.024814730147
⁵√n	28.906033239482

Divisors of 20180991

1, 3, 661, 1983, 10177, 30531, 6726997, 20180991

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	-20180990	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 20180991 can be divided by 8 positive divisors. The sum of these divisors (counting 20180991) is 1, the average is 0.125.

Base conversion 20180991

Base	System	Value
2	Binary	1001100111110111111111111
3	Ternary	1101222022010010
4	Quaternary	1030332333333
5	Quinary	20131242431
6	Senary	2000314303
8	Octal	114767777
10	Decimal	20180991
12	Duodecimal	6912993
16	Hexadecimal	133efff
20	Vigesimal	662c9b
36	Base36	c0jr3

Cryptographic Hash Functions

md5	f92a66cdfe2d77d8af498e73614e27f3
sha1	0cc0693511c3faf067da61fc3ecf2e5a3d1f216a
sha256	e76194488bdbdb6d5522d3ad2f7a3edad988dd882c5af68041699b2dd78b2129
sha512	7d5500ae348f99dfcb4ec93af9264348315df4d51a3d4c519fc35c67f228e95d11a0aa295eb64caf13130835e935e82dac570fee71a51b107c64537d9c8a1e38
ripemd-160	b6658ff733f0d9ea4c139981ba611c516194f907

20180991 as geometric shapes

Circle

Radius = n

Diameter	40361982
Circumference	126800906.13552
Area	1.2794839727564E+15

Sphere

Radius = n

Volume	3.4428339385122E+22
Surface area	5.1179358910257E+15
Circumference	126800906.13552

Square

Length = n

Perimeter	80723964
Area	407272397742081
Diagonal	28540231.174329

Cube

Length = n

Surface area	2443634386452486
Volume	8.2191605933814E+21
Space diagonal	34954501.75909

Equilateral Triangle

Length = n

Perimeter	60542973
Area	1.7635412135242E+14
Altitude	17477250.879545

Triangular Pyramid

Length = n

Surface area	1.7635412135242E+14
Volume	9.6863736520687E+20
Height	9513410.3914431