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

81427191 (number)

81427191 is an odd 8-digits composite number following 81427190 and preceding 81427192. In scientific notation, it is written as 8.1427191 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 54284792 positive integers (up to 81427191) that are relatively prime to 81427191.

Interesting facts

81427191 has 4 divisors, whose sum is 108569592
The reverse of 81427191 is 19172418
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	eighty-one million four hundred twenty-seven thousand one hundred ninety-one

Notation

Scientific notation	8.1427191 × 10^7
Engineering notation	8.1427191 × 10^6

Prime Factorization of 81427191

Prime Factorization 3 × 27142397

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81427191	Product of the distinct prime numbers

The prime factorization of 81427191 is 3 × 27142397. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 5, 28, 48, 459, 138, 5691, 5541, 76327, 62155, 68681, 84043, 5162593, 8883530, 63832215, 31635598, 440154087, 732439985, 3067427122, 798179458

Basic calculations (n = 81427191)

Multiplication

n×y

n×2	162854382
n×3	244281573
n×4	325708764
n×5	407135955

Division

n÷y

n÷2	40713595.5
n÷3	27142397
n÷3	20356797.75
n÷5	16285438.2

Exponentiation

n^y

n²	6630387434150481
n³	5.3989382400457E+23
n⁴	4.3962037526941E+31
n⁵	3.5797052264554E+39

Nth Root

^y√n

²√n	9023.7016240565
³√n	433.43417488756
⁴√n	94.993166196609
⁵√n	38.207963535155

Divisors of 81427191

1, 3, 27142397, 81427191

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	-81427190	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 81427191 can be divided by 4 positive divisors. The sum of these divisors (counting 81427191) is 1, the average is 0.25.

Base conversion 81427191

Base	System	Value
2	Binary	100110110100111101011110111
3	Ternary	12200012221002220
4	Quaternary	10312213223313
5	Quinary	131321132231
6	Senary	12025133423
8	Octal	466475367
10	Decimal	81427191
12	Duodecimal	2332a273
16	Hexadecimal	4da7af7
20	Vigesimal	158i7jb
36	Base36	1ch9mf

Cryptographic Hash Functions

md5	711b2a0e2e8cd25f1845fdd1f5c0906b
sha1	c1fdb7557cea3788c25842a0c17f112dadb2d3ea
sha256	2fc42333f12476439a5128dfc4091d2e9e247e75abe6aba31fd916236f0ef3b7
sha512	9ef9e9caa1c715dd92b96f2531ceaf33db61cff53b83216f57e0976921c4451bb407ab402d4f8019cf1925d21527b97e6176d2a63002ec68a5186ae552423445
ripemd-160	cb8d0310763bceaf3d54f8eebdc73351e94dbdef

81427191 as geometric shapes

Circle

Radius = n

Diameter	162854382
Circumference	511622130.09611
Area	2.0829976453581E+16

Sphere

Radius = n

Volume	2.261501961615E+24
Surface area	8.3319905814325E+16
Circumference	511622130.09611

Square

Length = n

Perimeter	325708764
Area	6630387434150481
Diagonal	115155437.85814

Cube

Length = n

Surface area	39782324604902886
Volume	5.3989382400457E+23
Space diagonal	141036031.92962

Equilateral Triangle

Length = n

Perimeter	244281573
Area	2.8710419774537E+15
Altitude	70518015.964808

Triangular Pyramid

Length = n

Surface area	2.8710419774537E+15
Volume	6.3627097345728E+22
Height	38385145.952715