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

81489907 (number)

81489907 is an odd 8-digits prime number following 81489906 and preceding 81489908. In scientific notation, it is written as 8.1489907 × 10^7. The sum of its digits is 46. It has a total of 1 prime factors and 2 positive divisors. There are 81489906 positive integers (up to 81489907) that are relatively prime to 81489907.

Interesting facts

81489907 has 2 divisors, whose sum is 81489908
The reverse of 81489907 is 70998418
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

Name	eighty-one million four hundred eighty-nine thousand nine hundred seven

Notation

Scientific notation	8.1489907 × 10^7
Engineering notation	8.1489907 × 10^6

Prime Factorization of 81489907

Prime Factorization 81489907

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81489907	Product of the distinct prime numbers

The prime factorization of 81489907 is 81489907. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 5, 60, 35, 78, 306, 1685, 7704, 9772, 40018, 579847, 859168, 531670, 5928990, 96242174, 15159839, 834120759, 793304639, 326578633, 1942754764

Basic calculations (n = 81489907)

Multiplication

n×y

n×2	162979814
n×3	244469721
n×4	325959628
n×5	407449535

Division

n÷y

n÷2	40744953.5
n÷3	27163302.333333
n÷3	20372476.75
n÷5	16297981.4

Exponentiation

n^y

n²	6640604942868649
n³	5.4114227921811E+23
n⁴	4.4097634007252E+31
n⁵	3.593512094171E+39

Nth Root

^y√n

²√n	9027.1760257569
³√n	433.54542471057
⁴√n	95.011452076878
⁵√n	38.213847350393

Divisors of 81489907

1, 81489907

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81489908	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40744954	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9027.1760811452	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999754571	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489907 can be divided by 2 positive divisors. The sum of these divisors (counting 81489907) is 81489908, the average is 40744954.

Base conversion 81489907

Base	System	Value
2	Binary	100110110110110111111110011
3	Ternary	12200100010010201
4	Quaternary	10312312333303
5	Quinary	131330134112
6	Senary	12030340031
8	Octal	466667763
10	Decimal	81489907
12	Duodecimal	2335a617
16	Hexadecimal	4db6ff3
20	Vigesimal	15964f7
36	Base36	1cim0j

Cryptographic Hash Functions

md5	0985bd933500f31ede963e48f8486b3d
sha1	7786652ba551d79e579225664fca7f9f77d7e6a0
sha256	a815ae6a2b2bd05efc9d87507a89a5e7e515769d7f404b3ce376d61ef26a2fb8
sha512	099953cd155e529c0fd855cb4dbfa831667f280ff6d0abc302583aad3cefd20d8476e1345461306abed96ae73602da0956140318c0015666c8112018289fe903
ripemd-160	b129e34b43d02938cd98f000433cbd231d31a4cd

81489907 as geometric shapes

Circle

Radius = n

Diameter	162979814
Circumference	512016186.34583
Area	2.0862075703908E+16

Sphere

Radius = n

Volume	2.2667314785846E+24
Surface area	8.3448302815633E+16
Circumference	512016186.34583

Square

Length = n

Perimeter	325959628
Area	6640604942868649
Diagonal	115244131.67592

Cube

Length = n

Surface area	39843629657211894
Volume	5.4114227921811E+23
Space diagonal	141144659.22806

Equilateral Triangle

Length = n

Perimeter	244469721
Area	2.8754662885104E+15
Altitude	70572329.614031

Triangular Pyramid

Length = n

Surface area	2.8754662885104E+15
Volume	6.3774229203645E+22
Height	38414710.558641