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

12961981 (number)

12961981 is an odd 8-digits composite number following 12961980 and preceding 12961982. In scientific notation, it is written as 1.2961981 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 12867232 positive integers (up to 12961981) that are relatively prime to 12961981.

Interesting facts

12961981 has 4 divisors, whose sum is 13056732
The reverse of 12961981 is 18916921
Previous prime number is 137

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twelve million nine hundred sixty-one thousand nine hundred eighty-one

Notation

Scientific notation	1.2961981 × 10^7
Engineering notation	1.2961981 × 10^6

Prime Factorization of 12961981

Prime Factorization 137 × 94613

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12961981	Product of the distinct prime numbers

The prime factorization of 12961981 is 137 × 94613. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 2, 35, 12, 982, 591, 8910, 7899, 77431, 6919, 316095, 866498, 5231254, 1804700, 88283709, 6753046, 121833283, 122908361, 9322256532, 5673121154

Basic calculations (n = 12961981)

Multiplication

n×y

n×2	25923962
n×3	38885943
n×4	51847924
n×5	64809905

Division

n÷y

n÷2	6480990.5
n÷3	4320660.3333333
n÷3	3240495.25
n÷5	2592396.2

Exponentiation

n^y

n²	168012951444361
n³	2.1777806843757E+21
n⁴	2.8228351853045E+28
n⁵	3.6589536038049E+35

Nth Root

^y√n

²√n	3600.2751283756
³√n	234.90402599742
⁴√n	60.00229269266
⁵√n	26.45661491733

Divisors of 12961981

1, 137, 94613, 12961981

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	-12961980	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 12961981 can be divided by 4 positive divisors. The sum of these divisors (counting 12961981) is 1, the average is 0.25.

Base conversion 12961981

Base	System	Value
2	Binary	110001011100100010111101
3	Ternary	220101112111101
4	Quaternary	301130202331
5	Quinary	11304240411
6	Senary	1141453101
8	Octal	61344275
10	Decimal	12961981
12	Duodecimal	4411191
16	Hexadecimal	c5c8bd
20	Vigesimal	4104j1
36	Base36	7ptj1

Cryptographic Hash Functions

md5	08a2b151fed4c384905e8431ce62cb65
sha1	1eb1ae067682dddbbbf49c5d648ed48a42260a09
sha256	de2173a4e3a13e805eed1997fd38234284a2cb773c3ac24c0d742842ebd387cd
sha512	8b2959d07fe1664823310924e8b4825e3d6e8807208daecf7bb74c9388dc57b31401296866060aa3567dac0c9bc9461111608f7a523a2271af198d9746630a6a
ripemd-160	3e11f7f9989f49965e265e8b688b2ebaee7c77d4

12961981 as geometric shapes

Circle

Radius = n

Diameter	25923962
Circumference	81442528.571141
Area	5.2782825396554E+14

Sphere

Radius = n

Volume	9.1222663988861E+21
Surface area	2.1113130158622E+15
Circumference	81442528.571141

Square

Length = n

Perimeter	51847924
Area	168012951444361
Diagonal	18331009.325422

Cube

Length = n

Surface area	1008077708666166
Volume	2.1777806843757E+21
Space diagonal	22450809.658742

Equilateral Triangle

Length = n

Perimeter	38885943
Area	72751742057809
Altitude	11225404.829371

Triangular Pyramid

Length = n

Surface area	72751742057809
Volume	2.5665391497653E+20
Height	6110336.4418075