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

81640189 (number)

81640189 is an odd 8-digits composite number following 81640188 and preceding 81640190. In scientific notation, it is written as 8.1640189 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 81622080 positive integers (up to 81640189) that are relatively prime to 81640189.

Interesting facts

81640189 has 4 divisors, whose sum is 81658300
The reverse of 81640189 is 98104618
Previous prime number is 8461

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

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

Notation

Scientific notation	8.1640189 × 10^7
Engineering notation	8.1640189 × 10^6

Prime Factorization of 81640189

Prime Factorization 8461 × 9649

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81640189	Product of the distinct prime numbers

The prime factorization of 81640189 is 8461 × 9649. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 7, 19, 84, 916, 94, 4989, 6666, 86125, 62281, 233412, 337740, 3724833, 9334608, 11526501, 13118036, 563377332, 69147946, 9349370924, 7558029874

Basic calculations (n = 81640189)

Multiplication

n×y

n×2	163280378
n×3	244920567
n×4	326560756
n×5	408200945

Division

n÷y

n÷2	40820094.5
n÷3	27213396.333333
n÷3	20410047.25
n÷5	16328037.8

Exponentiation

n^y

n²	6665120459955721
n³	5.4414169405855E+23
n⁴	4.442383074572E+31
n⁵	3.6267699381846E+39

Nth Root

^y√n

²√n	9035.4960572179
³√n	433.81177287959
⁴√n	95.055226354041
⁵√n	38.227931601952

Divisors of 81640189

1, 8461, 9649, 81640189

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	-81640188	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 81640189 can be divided by 4 positive divisors. The sum of these divisors (counting 81640189) is 1, the average is 0.25.

Base conversion 81640189

Base	System	Value
2	Binary	100110111011011101011111101
3	Ternary	12200121202021201
4	Quaternary	10313123223331
5	Quinary	131344441224
6	Senary	12033455501
8	Octal	467335375
10	Decimal	81640189
12	Duodecimal	23411591
16	Hexadecimal	4ddbafd
20	Vigesimal	15a5099
36	Base36	1cltz1

Cryptographic Hash Functions

md5	96a246f8390add0c18aeb2eb2ee7216a
sha1	5e0566b4347047d35d9adf32960b67dc2926955e
sha256	8b2205a70949aaacd4c4fd4cf2424aa32417b880ede9d4f844d39650d3f72f35
sha512	a9b69b6f2767efa3405515036893a932aed68cfeeefd504081d266e2638f42d4ed00b5b3b699714cafcbb21cc8dc6a621b29bd52e5e12022f0c98127f5fef141
ripemd-160	ebd660fc47236ad817cf3f061c5d206d46031cc2

81640189 as geometric shapes

Circle

Radius = n

Diameter	163280378
Circumference	512960436.00016
Area	2.0939093472288E+16

Sphere

Radius = n

Volume	2.2792953980883E+24
Surface area	8.3756373889152E+16
Circumference	512960436.00016

Square

Length = n

Perimeter	326560756
Area	6665120459955721
Diagonal	115456662.5185

Cube

Length = n

Surface area	39990722759734326
Volume	5.4414169405855E+23
Space diagonal	141404955.28753

Equilateral Triangle

Length = n

Perimeter	244920567
Area	2.8860818188025E+15
Altitude	70702477.643763

Triangular Pyramid

Length = n

Surface area	2.8860818188025E+15
Volume	6.4127713632523E+22
Height	38485554.172834