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

12981387 (number)

12981387 is an odd 8-digits composite number following 12981386 and preceding 12981388. In scientific notation, it is written as 1.2981387 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 8145152 positive integers (up to 12981387) that are relatively prime to 12981387.

Interesting facts

12981387 has 8 divisors, whose sum is 18326736
The reverse of 12981387 is 78318921
Previous prime number is 17

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	twelve million nine hundred eighty-one thousand three hundred eighty-seven

Notation

Scientific notation	1.2981387 × 10^7
Engineering notation	1.2981387 × 10^6

Prime Factorization of 12981387

Prime Factorization 3 × 17 × 254537

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	12981387	Product of the distinct prime numbers

The prime factorization of 12981387 is 3 × 17 × 254537. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 77, 11, 168, 978, 4201, 4323, 61352, 66543, 699796, 207212, 3100470, 7136440, 69725079, 21683517, 861550026, 20808540, 2956346306, 6914900970

Basic calculations (n = 12981387)

Multiplication

n×y

n×2	25962774
n×3	38944161
n×4	51925548
n×5	64906935

Division

n÷y

n÷2	6490693.5
n÷3	4327129
n÷3	3245346.75
n÷5	2596277.4

Exponentiation

n^y

n²	168516408443769
n³	2.1875767138586E+21
n⁴	2.8397779914787E+28
n⁵	3.6864257101468E+35

Nth Root

^y√n

²√n	3602.969192208
³√n	235.02119621698
⁴√n	60.024738168592
⁵√n	26.464532069508

Divisors of 12981387

1, 3, 17, 51, 254537, 763611, 4327129, 12981387

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	-12981386	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 12981387 can be divided by 8 positive divisors. The sum of these divisors (counting 12981387) is 1, the average is 0.125.

Base conversion 12981387

Base	System	Value
2	Binary	110001100001010010001011
3	Ternary	220102112010010
4	Quaternary	301201102023
5	Quinary	11310401022
6	Senary	1142123003
8	Octal	61412213
10	Decimal	12981387
12	Duodecimal	4420463
16	Hexadecimal	c6148b
20	Vigesimal	412d97
36	Base36	7q8i3

Cryptographic Hash Functions

md5	93d924d1b726caf85a3aad13268cb43a
sha1	4fc331616a597583dc1d82d3512c3fb262533e9f
sha256	3fdc9d60edff2b574c0ebe4e8b6c972f002667d324721359cf0d2e5e79578158
sha512	ff2caa823e03d88c11b7a948719b678be6b5c72d2e74a88d396e135e161b622d031ee223b46211220ab83c5880295df9f1355364b4bfc29c77cb326c7e83bad2
ripemd-160	b574a7702b3804bd76fceae9adb4e05269c625d9

12981387 as geometric shapes

Circle

Radius = n

Diameter	25962774
Circumference	81564460.065212
Area	5.2940991077628E+14

Sphere

Radius = n

Volume	9.1632999112298E+21
Surface area	2.1176396431051E+15
Circumference	81564460.065212

Square

Length = n

Perimeter	51925548
Area	168516408443769
Diagonal	18358453.553814

Cube

Length = n

Surface area	1011098450662614
Volume	2.1875767138586E+21
Space diagonal	22484421.836714

Equilateral Triangle

Length = n

Perimeter	38944161
Area	72969745333409
Altitude	11242210.918357

Triangular Pyramid

Length = n

Surface area	72969745333409
Volume	2.5780838812254E+20
Height	6119484.5179379