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

80491981 (number)

80491981 is an odd 8-digits composite number following 80491980 and preceding 80491982. In scientific notation, it is written as 8.0491981 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 79912764 positive integers (up to 80491981) that are relatively prime to 80491981.

Interesting facts

80491981 has 4 divisors, whose sum is 81071200
The reverse of 80491981 is 18919408
Previous prime number is 139

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4

Name

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

Notation

Scientific notation	8.0491981 × 10^7
Engineering notation	8.0491981 × 10^6

Prime Factorization of 80491981

Prime Factorization 139 × 579079

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	80491981	Product of the distinct prime numbers

The prime factorization of 80491981 is 139 × 579079. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 24, 100, 314, 107, 6231, 9610, 71237, 2823, 556888, 830385, 40589, 6208768, 9873019, 29557885, 371204084, 982501133, 6190679773, 3310995168

Basic calculations (n = 80491981)

Multiplication

n×y

n×2	160983962
n×3	241475943
n×4	321967924
n×5	402459905

Division

n÷y

n÷2	40245990.5
n÷3	26830660.333333
n÷3	20122995.25
n÷5	16098396.2

Exponentiation

n^y

n²	6478959005304361
n³	5.2150424515474E+23
n⁴	4.1976909792414E+31
n⁵	3.3788046254497E+39

Nth Root

^y√n

²√n	8971.732329935
³√n	431.76841761585
⁴√n	94.71922893444
⁵√n	38.119792083338

Divisors of 80491981

1, 139, 579079, 80491981

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	-80491980	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 80491981 can be divided by 4 positive divisors. The sum of these divisors (counting 80491981) is 1, the average is 0.25.

Base conversion 80491981

Base	System	Value
2	Binary	100110011000011010111001101
3	Ternary	12121110102020111
4	Quaternary	10303003113031
5	Quinary	131101220411
6	Senary	11553120021
8	Octal	463032715
10	Decimal	80491981
12	Duodecimal	22b59011
16	Hexadecimal	4cc35cd
20	Vigesimal	15319j1
36	Base36	1bx80d

Cryptographic Hash Functions

md5	323a909d018a1b0b78aefba678ab0506
sha1	8d23d4d9dd27635a423d2aa02caa5b5f4260b69a
sha256	e0659dca9222e708989f01152546d78aef36ddbb595e4fc290686f5d16a78066
sha512	09b659b51961eb0e065c6b34586d24dd051686d0d914f75c5b14fea51bc0e07a16c2a92d5d3e1f09944a83bfeebe6e5852c6c51f5bb2f90b1a43e1b5887cbfdd
ripemd-160	d3375b84ca0132dc8f40813d4b1bcff0565805a2

80491981 as geometric shapes

Circle

Radius = n

Diameter	160983962
Circumference	505746032.36498
Area	2.0354250013974E+16

Sphere

Radius = n

Volume	2.1844718738587E+24
Surface area	8.1417000055894E+16
Circumference	505746032.36498

Square

Length = n

Perimeter	321967924
Area	6478959005304361
Diagonal	113832851.19248

Cube

Length = n

Surface area	38873754031826166
Volume	5.2150424515474E+23
Space diagonal	139416200.69387

Equilateral Triangle

Length = n

Perimeter	241475943
Area	2.8054715443358E+15
Altitude	69708100.346934

Triangular Pyramid

Length = n

Surface area	2.8054715443358E+15
Volume	6.1459864694414E+22
Height	37944283.730826