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

81001427 (number)

81001427 is an odd 8-digits composite number following 81001426 and preceding 81001428. In scientific notation, it is written as 8.1001427 × 10^7. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 70835040 positive integers (up to 81001427) that are relatively prime to 81001427.

Interesting facts

81001427 has 4 divisors, whose sum is 81329616
The reverse of 81001427 is 72410018
Previous prime number is 247

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

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

Notation

Scientific notation	8.1001427 × 10^7
Engineering notation	8.1001427 × 10^6

Prime Factorization of 81001427

Prime Factorization 247 × 327941

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81001427	Product of the distinct prime numbers

The prime factorization of 81001427 is 247 × 327941. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 8, 11, 69, 694, 581, 2984, 640, 8152, 43038, 805677, 74494, 2235522, 712945, 21447333, 2865941, 114813708, 914852771, 1174628004, 8675670393

Basic calculations (n = 81001427)

Multiplication

n×y

n×2	162002854
n×3	243004281
n×4	324005708
n×5	405007135

Division

n÷y

n÷2	40500713.5
n÷3	27000475.666667
n÷3	20250356.75
n÷5	16200285.4

Exponentiation

n^y

n²	6561231176036329
n³	5.3146908813583E+23
n⁴	4.3049754545391E+31
n⁵	3.4870915501764E+39

Nth Root

^y√n

²√n	9000.0792774286
³√n	432.67741192932
⁴√n	94.868747632867
⁵√n	38.16792357779

Divisors of 81001427

1, 247, 327941, 81001427

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	-81001426	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 81001427 can be divided by 4 positive divisors. The sum of these divisors (counting 81001427) is 1, the average is 0.25.

Base conversion 81001427

Base	System	Value
2	Binary	100110100111111101111010011
3	Ternary	12122102022001212
4	Quaternary	10310333233103
5	Quinary	131214021202
6	Senary	12012050335
8	Octal	464775723
10	Decimal	81001427
12	Duodecimal	231639ab
16	Hexadecimal	4d3fbd3
20	Vigesimal	15653b7
36	Base36	1c853n

Cryptographic Hash Functions

md5	ea55a101b0a7d2b4aa5f71654bad6c3b
sha1	1fe8bbe0f2d15048ab4d2fb70c933c7ca870ab8c
sha256	9c1cdfdb21d5ee655f199ab2326094a0ef12ecd43ed2f93c28f2aa77af2e712e
sha512	97c9bd0442ff40ef2cc7d5a886a4d7001eac13565d565f97a389714efd1ba58eb62ade9a00ec5f3203f97a520b022484d7b6851316e56f729db0fea195dae194
ripemd-160	0ccbdb520d33764d9ed1df5c8a5950b90fc2e667

81001427 as geometric shapes

Circle

Radius = n

Diameter	162002854
Circumference	508946975.98698
Area	2.061271566114E+16

Sphere

Radius = n

Volume	2.2262125105301E+24
Surface area	8.245086264456E+16
Circumference	508946975.98698

Square

Length = n

Perimeter	324005708
Area	6561231176036329
Diagonal	114553316.63497

Cube

Length = n

Surface area	39367387056217974
Volume	5.3146908813583E+23
Space diagonal	140298587.04958

Equilateral Triangle

Length = n

Perimeter	243004281
Area	2.841096439275E+15
Altitude	70149293.524791

Triangular Pyramid

Length = n

Surface area	2.841096439275E+15
Volume	6.2634232701979E+22
Height	38184438.878325