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

81445637 (number)

81445637 is an odd 8-digits composite number following 81445636 and preceding 81445638. In scientific notation, it is written as 8.1445637 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 64440432 positive integers (up to 81445637) that are relatively prime to 81445637.

Interesting facts

81445637 has 8 divisors, whose sum is 100240896
The reverse of 81445637 is 73654418
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million four hundred forty-five thousand six hundred thirty-seven

Notation

Scientific notation	8.1445637 × 10^7
Engineering notation	8.1445637 × 10^6

Prime Factorization of 81445637

Prime Factorization 7 × 13 × 895007

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81445637	Product of the distinct prime numbers

The prime factorization of 81445637 is 7 × 13 × 895007. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 36, 61, 410, 467, 8860, 1672, 64125, 78857, 646084, 981923, 9419243, 1360648, 72564843, 72534840, 64523427, 929469811, 5731591738, 8470942121

Basic calculations (n = 81445637)

Multiplication

n×y

n×2	162891274
n×3	244336911
n×4	325782548
n×5	407228185

Division

n÷y

n÷2	40722818.5
n÷3	27148545.666667
n÷3	20361409.25
n÷5	16289127.4

Exponentiation

n^y

n²	6633391786335769
n³	5.4026081950868E+23
n⁴	4.4001886591027E+31
n⁵	3.5837616826079E+39

Nth Root

^y√n

²√n	9024.7236522788
³√n	433.46690156049
⁴√n	94.998545527175
⁵√n	38.209694456319

Divisors of 81445637

1, 7, 13, 91, 895007, 6265049, 11635091, 81445637

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81445636	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81445637 can be divided by 8 positive divisors. The sum of these divisors (counting 81445637) is 1, the average is 0.125.

Base conversion 81445637

Base	System	Value
2	Binary	100110110101100001100000101
3	Ternary	12200020212102002
4	Quaternary	10312230030011
5	Quinary	131322230022
6	Senary	12025355045
8	Octal	466541405
10	Decimal	81445637
12	Duodecimal	23338a85
16	Hexadecimal	4dac305
20	Vigesimal	1590e1h
36	Base36	1chnut

Cryptographic Hash Functions

md5	d238158b2027d9b1c5d351ae55d6553e
sha1	63d1c5123cdd1a9ab39e91bc164b8b6bf8125fa0
sha256	5ca0e813e7e0f1874743d0d30fb735e6ddb192f79be90a8e24bb18525789905d
sha512	be28e27b7ac6233de559f23b1728fb03dc96206344773a5436b77913efe0b98d6c37d3fd7abf34467818311a87a2ad483a69553f2d1c3acf933db663d2a7633f
ripemd-160	5463d90cf8a28d42a8e3b43f83c748dd6b34d115

81445637 as geometric shapes

Circle

Radius = n

Diameter	162891274
Circumference	511738029.73228
Area	2.0839414904335E+16

Sphere

Radius = n

Volume	2.2630392287878E+24
Surface area	8.3357659617341E+16
Circumference	511738029.73228

Square

Length = n

Perimeter	325782548
Area	6633391786335769
Diagonal	115181524.44152

Cube

Length = n

Surface area	39800350718014614
Volume	5.4026081950868E+23
Space diagonal	141067981.33881

Equilateral Triangle

Length = n

Perimeter	244336911
Area	2.8723429001109E+15
Altitude	70533990.669406

Triangular Pyramid

Length = n

Surface area	2.8723429001109E+15
Volume	6.3670348180665E+22
Height	38393841.480505