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

81340981 (number)

81340981 is an odd 8-digits composite number following 81340980 and preceding 81340982. In scientific notation, it is written as 8.1340981 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 81253600 positive integers (up to 81340981) that are relatively prime to 81340981.

Interesting facts

81340981 has 4 divisors, whose sum is 81428364
The reverse of 81340981 is 18904318
Previous prime number is 941

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	eighty-one million three hundred forty thousand nine hundred eighty-one

Notation

Scientific notation	8.1340981 × 10^7
Engineering notation	8.1340981 × 10^6

Prime Factorization of 81340981

Prime Factorization 941 × 86441

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81340981	Product of the distinct prime numbers

The prime factorization of 81340981 is 941 × 86441. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 7, 6, 87, 637, 614, 3683, 3595, 67062, 97527, 883044, 491674, 2280561, 9402548, 56556935, 73204909, 841484826, 747843097, 2465467050, 1128282800

Basic calculations (n = 81340981)

Multiplication

n×y

n×2	162681962
n×3	244022943
n×4	325363924
n×5	406704905

Division

n÷y

n÷2	40670490.5
n÷3	27113660.333333
n÷3	20335245.25
n÷5	16268196.2

Exponentiation

n^y

n²	6616355190042361
n³	5.3818082180249E+23
n⁴	4.37761560008E+31
n⁵	3.5607954735141E+39

Nth Root

^y√n

²√n	9018.9234945197
³√n	433.28115657114
⁴√n	94.968013007116
⁵√n	38.199869667895

Divisors of 81340981

1, 941, 86441, 81340981

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	-81340980	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 81340981 can be divided by 4 positive divisors. The sum of these divisors (counting 81340981) is 1, the average is 0.25.

Base conversion 81340981

Base	System	Value
2	Binary	100110110010010101000110101
3	Ternary	12200001112211221
4	Quaternary	10312102220311
5	Quinary	131310402411
6	Senary	12023230341
8	Octal	466225065
10	Decimal	81340981
12	Duodecimal	232a83b1
16	Hexadecimal	4d92a35
20	Vigesimal	1587c91
36	Base36	1cff3p

Cryptographic Hash Functions

md5	507f4a8b845e0fa832a40c0caa612d3c
sha1	b395c7c3852c697afe3b6964f09148ed78da4154
sha256	25730122293a3d4d4663995a4bc6fc55e40d376eb0618f9b85f3dea66efd1fcd
sha512	d23e1550be5cae17a638629d6692be514372e076182d867e306c7c3fa32c1a73a89c420b8143ee0a6a45aee02d873c0ab078cfac79eac632af381cad4304f4ef
ripemd-160	0df81199853bf6afb1a29a26d7162a1143b6bf9c

81340981 as geometric shapes

Circle

Radius = n

Diameter	162681962
Circumference	511080456.69077
Area	2.0785892858578E+16

Sphere

Radius = n

Volume	2.2543265547701E+24
Surface area	8.3143571434311E+16
Circumference	511080456.69077

Square

Length = n

Perimeter	325363924
Area	6616355190042361
Diagonal	115033518.50693

Cube

Length = n

Surface area	39698131140254166
Volume	5.3818082180249E+23
Space diagonal	140886711.82949

Equilateral Triangle

Length = n

Perimeter	244022943
Area	2.8649658375189E+15
Altitude	70443355.914747

Triangular Pyramid

Length = n

Surface area	2.8649658375189E+15
Volume	6.3425218100181E+22
Height	38344506.168977