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

81308907 (number)

81308907 is an odd 8-digits composite number following 81308906 and preceding 81308908. In scientific notation, it is written as 8.1308907 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 54205920 positive integers (up to 81308907) that are relatively prime to 81308907.

Interesting facts

81308907 has 8 divisors, whose sum is 120457680
The reverse of 81308907 is 70980318
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	eighty-one million three hundred eight thousand nine hundred seven

Notation

Scientific notation	8.1308907 × 10^7
Engineering notation	8.1308907 × 10^6

Prime Factorization of 81308907

Prime Factorization 9 × 3 × 3011441

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81308907	Product of the distinct prime numbers

The prime factorization of 81308907 is 9 × 3 × 3011441. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 9, 2, 69, 486, 97, 901, 4551, 20726, 91976, 335179, 63659, 8873702, 8940153, 60642884, 12930222, 27598414, 745617134, 9957312845, 1949915600

Basic calculations (n = 81308907)

Multiplication

n×y

n×2	162617814
n×3	243926721
n×4	325235628
n×5	406544535

Division

n÷y

n÷2	40654453.5
n÷3	27102969
n÷3	20327226.75
n÷5	16261781.4

Exponentiation

n^y

n²	6611138357534649
n³	5.3754443387692E+23
n⁴	4.3707150382466E+31
n⁵	3.5537806256829E+39

Nth Root

^y√n

²√n	9017.1451690654
³√n	433.22419927584
⁴√n	94.958649785396
⁵√n	38.196856633382

Divisors of 81308907

1, 3, 9, 27, 3011441, 9034323, 27102969, 81308907

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	-81308906	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 81308907 can be divided by 8 positive divisors. The sum of these divisors (counting 81308907) is 1, the average is 0.125.

Base conversion 81308907

Base	System	Value
2	Binary	100110110001010110011101011
3	Ternary	12122222220212000
4	Quaternary	10312022303223
5	Quinary	131303341112
6	Senary	12022422043
8	Octal	466126353
10	Decimal	81308907
12	Duodecimal	23291923
16	Hexadecimal	4d8aceb
20	Vigesimal	1583c57
36	Base36	1ceqcr

Cryptographic Hash Functions

md5	478cb52b24a979200e3e46f979be74aa
sha1	31296a04ff087551aac0581ef980f33b0c871add
sha256	538dd62cc6536a6b530f9820cbba8595bff48876c4b3b6e494fb47b1651b580c
sha512	f9e4e4fab3f83b5a732f80deac09253a1f84c444eae57c45ac869531ca09224bea4bc79a7e270774f392d9f30d242c09794bcc176daa73ecfcee36ec19698b12
ripemd-160	2afbf66645a50e8fcfac89897701aa86a3212602

81308907 as geometric shapes

Circle

Radius = n

Diameter	162617814
Circumference	510878929.80523
Area	2.0769503695897E+16

Sphere

Radius = n

Volume	2.2516608592611E+24
Surface area	8.3078014783586E+16
Circumference	510878929.80523

Square

Length = n

Perimeter	325235628
Area	6611138357534649
Diagonal	114988159.02113

Cube

Length = n

Surface area	39666830145207894
Volume	5.3754443387692E+23
Space diagonal	140831158.03189

Equilateral Triangle

Length = n

Perimeter	243926721
Area	2.8627068827794E+15
Altitude	70415579.015946

Triangular Pyramid

Length = n

Surface area	2.8627068827794E+15
Volume	6.3350219063909E+22
Height	38329386.340378