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

12820981 (number)

12820981 is an odd 8-digits composite number following 12820980 and preceding 12820982. In scientific notation, it is written as 1.2820981 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 12429648 positive integers (up to 12820981) that are relatively prime to 12820981.

Interesting facts

12820981 has 8 divisors, whose sum is 13214880
The reverse of 12820981 is 18902821
Previous prime number is 419

Basic properties

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

Name

Name	twelve million eight hundred twenty thousand nine hundred eighty-one

Notation

Scientific notation	1.2820981 × 10^7
Engineering notation	1.2820981 × 10^6

Prime Factorization of 12820981

Prime Factorization 37 × 419 × 827

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	12820981	Product of the distinct prime numbers

The prime factorization of 12820981 is 37 × 419 × 827. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 10, 11, 65, 863, 259, 5360, 793, 88617, 36492, 167397, 861460, 8004619, 7954698, 63333217, 68404264, 239108662, 608466217, 3881075129, 4590483237

Basic calculations (n = 12820981)

Multiplication

n×y

n×2	25641962
n×3	38462943
n×4	51283924
n×5	64104905

Division

n÷y

n÷2	6410490.5
n÷3	4273660.3333333
n÷3	3205245.25
n÷5	2564196.2

Exponentiation

n^y

n²	164377553802361
n³	2.1074814941265E+21
n⁴	2.7019980194048E+28
n⁵	3.4642265268827E+35

Nth Root

^y√n

²√n	3580.6397473077
³√n	234.04915932136
⁴√n	59.838447066311
⁵√n	26.398803984748

Divisors of 12820981

1, 37, 419, 827, 15503, 30599, 346513, 12820981

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	-12820980	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 12820981 can be divided by 8 positive divisors. The sum of these divisors (counting 12820981) is 1, the average is 0.125.

Base conversion 12820981

Base	System	Value
2	Binary	110000111010000111110101
3	Ternary	220010101002011
4	Quaternary	300322013311
5	Quinary	11240232411
6	Senary	1134444221
8	Octal	60720765
10	Decimal	12820981
12	Duodecimal	4363671
16	Hexadecimal	c3a1f5
20	Vigesimal	402c91
36	Base36	7msqd

Cryptographic Hash Functions

md5	9192caca3c51f5423542820b2fbb0c3d
sha1	f5d34b9658cf0e144aedac24ebe4da33e7d87076
sha256	8f8d35796d97478c9093933b121d2482d8e4cb3ecad527af163d64a7f0d58fc0
sha512	4051fadb5ed0875d3633e95f2edc06df0b2d8ff2fecb47759d60f6d55f000c659ff2da6989a2493d9ceb86d551cbb3a8c214b18e0e0522e5d56d50db74817d5a
ripemd-160	158578eb9aac4f78f369063e5e6f6278bf98f4f9

12820981 as geometric shapes

Circle

Radius = n

Diameter	25641962
Circumference	80556599.442829
Area	5.1640731544056E+14

Sphere

Radius = n

Volume	8.8277978393659E+21
Surface area	2.0656292617622E+15
Circumference	80556599.442829

Square

Length = n

Perimeter	51283924
Area	164377553802361
Diagonal	18131605.213128

Cube

Length = n

Surface area	986265322814166
Volume	2.1074814941265E+21
Space diagonal	22206590.494875

Equilateral Triangle

Length = n

Perimeter	38462943
Area	71177568702394
Altitude	11103295.247438

Triangular Pyramid

Length = n

Surface area	71177568702394
Volume	2.4836907595367E+20
Height	6043868.4043759