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

81663669 (number)

81663669 is an odd 8-digits composite number following 81663668 and preceding 81663670. In scientific notation, it is written as 8.1663669 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 54081000 positive integers (up to 81663669) that are relatively prime to 81663669.

Interesting facts

81663669 has 8 divisors, whose sum is 91339840
The reverse of 81663669 is 96636618
Previous prime number is 151

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	eighty-one million six hundred sixty-three thousand six hundred sixty-nine

Notation

Scientific notation	8.1663669 × 10^7
Engineering notation	8.1663669 × 10^6

Prime Factorization of 81663669

Prime Factorization 9 × 151 × 60091

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81663669	Product of the distinct prime numbers

The prime factorization of 81663669 is 9 × 151 × 60091. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 9, 85, 37, 760, 489, 1708, 3307, 69812, 52259, 767692, 166846, 9057779, 4495152, 21886272, 92473338, 133711291, 141150341, 9958258956, 2970287782

Basic calculations (n = 81663669)

Multiplication

n×y

n×2	163327338
n×3	244991007
n×4	326654676
n×5	408318345

Division

n÷y

n÷2	40831834.5
n÷3	27221223
n÷3	20415917.25
n÷5	16332733.8

Exponentiation

n^y

n²	6668954834541561
n³	5.4461132018395E+23
n⁴	4.4474958585155E+31
n⁵	3.6319882966868E+39

Nth Root

^y√n

²√n	9036.7952837275
³√n	433.85335748071
⁴√n	95.062060169804
⁵√n	38.230130246033

Divisors of 81663669

1, 9, 151, 1359, 60091, 540819, 9073741, 81663669

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	-81663668	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 81663669 can be divided by 8 positive divisors. The sum of these divisors (counting 81663669) is 1, the average is 0.125.

Base conversion 81663669

Base	System	Value
2	Binary	100110111100001011010110101
3	Ternary	12200122221111100
4	Quaternary	10313201122311
5	Quinary	131401214134
6	Senary	12034200313
8	Octal	467413265
10	Decimal	81663669
12	Duodecimal	23423099
16	Hexadecimal	4de16b5
20	Vigesimal	15a7j39
36	Base36	1cmc39

Cryptographic Hash Functions

md5	2a301faf55246728d790708de9630c40
sha1	b10b5c39305ad97c7a7d12545a828cb917b1272a
sha256	04d607a430cd574098f17d22b2e456366420392ed8a3e611689bee0b50d3af21
sha512	6eafc7e5c7e316f3a7bc99e8a8708f33612d1ed5ed1e1d87c445eab4e2dc10f083429161c5dbd8de9a7dd4bae9d5097e0fd0fdc7badb951ce5476199ba53d56b
ripemd-160	31961fed18c9d494318b8c6edfe43ececa767635

81663669 as geometric shapes

Circle

Radius = n

Diameter	163327338
Circumference	513107965.19118
Area	2.0951139515318E+16

Sphere

Radius = n

Volume	2.2812625634023E+24
Surface area	8.3804558061272E+16
Circumference	513107965.19118

Square

Length = n

Perimeter	326654676
Area	6668954834541561
Diagonal	115489868.25295

Cube

Length = n

Surface area	40013729007249366
Volume	5.4461132018395E+23
Space diagonal	141445623.84049

Equilateral Triangle

Length = n

Perimeter	244991007
Area	2.887742151702E+15
Altitude	70722811.920244

Triangular Pyramid

Length = n

Surface area	2.887742151702E+15
Volume	6.4183059602172E+22
Height	38496622.750982