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

81353641 (number)

81353641 is an odd 8-digits composite number following 81353640 and preceding 81353642. In scientific notation, it is written as 8.1353641 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 78729300 positive integers (up to 81353641) that are relatively prime to 81353641.

Interesting facts

81353641 has 4 divisors, whose sum is 83977984
The reverse of 81353641 is 14635318
Previous prime number is 31

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	eighty-one million three hundred fifty-three thousand six hundred forty-one

Notation

Scientific notation	8.1353641 × 10^7
Engineering notation	8.1353641 × 10^6

Prime Factorization of 81353641

Prime Factorization 31 × 2624311

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81353641	Product of the distinct prime numbers

The prime factorization of 81353641 is 31 × 2624311. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 100, 58, 389, 173, 8760, 9197, 7455, 69554, 898173, 146366, 5218030, 5785781, 60635119, 62714519, 979024307, 862656768, 9683956540, 9250179402

Basic calculations (n = 81353641)

Multiplication

n×y

n×2	162707282
n×3	244060923
n×4	325414564
n×5	406768205

Division

n÷y

n÷2	40676820.5
n÷3	27117880.333333
n÷3	20338410.25
n÷5	16270728.2

Exponentiation

n^y

n²	6618414903956881
n³	5.3843215008556E+23
n⁴	4.3803415840919E+31
n⁵	3.5635673668958E+39

Nth Root

^y√n

²√n	9019.6253248126
³√n	433.30363419074
⁴√n	94.971708023035
⁵√n	38.201058687843

Divisors of 81353641

1, 31, 2624311, 81353641

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	-81353640	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 81353641 can be divided by 4 positive divisors. The sum of these divisors (counting 81353641) is 1, the average is 0.25.

Base conversion 81353641

Base	System	Value
2	Binary	100110110010101101110101001
3	Ternary	12200002012012211
4	Quaternary	10312111232221
5	Quinary	131311304031
6	Senary	12023405121
8	Octal	466255651
10	Decimal	81353641
12	Duodecimal	232b37a1
16	Hexadecimal	4d95ba9
20	Vigesimal	1589421
36	Base36	1cfovd

Cryptographic Hash Functions

md5	abde0ab9c3afaa15a343296b8bffa892
sha1	90516a7b8a007a5e0784986741d032c39d41d0fe
sha256	207cffe4a088bf8b1293d6666d8ba237809550e425d68648744a0a3138cb1b6c
sha512	c30f1f7cf6a9062f8769a1ed25462b36d36a61494c4ee4af1790c8221991f36ec64674f409fd740d29e46ffd22dac689374acb2bc6c480934de18b232417b474
ripemd-160	9e8b25fe0ff1883ecd9c70d6209f94d0d409e7ff

81353641 as geometric shapes

Circle

Radius = n

Diameter	162707282
Circumference	511160001.81676
Area	2.079236364068E+16

Sphere

Radius = n

Volume	2.2553793162205E+24
Surface area	8.3169454562721E+16
Circumference	511160001.81676

Square

Length = n

Perimeter	325414564
Area	6618414903956881
Diagonal	115051422.45063

Cube

Length = n

Surface area	39710489423741286
Volume	5.3843215008556E+23
Space diagonal	140908639.59272

Equilateral Triangle

Length = n

Perimeter	244060923
Area	2.8658577198061E+15
Altitude	70454319.796359

Triangular Pyramid

Length = n

Surface area	2.8658577198061E+15
Volume	6.3454837422392E+22
Height	38350474.150211