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

81138962 (number)

81138962 is an even 8-digits composite number following 81138961 and preceding 81138963. In scientific notation, it is written as 8.1138962 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 40569480 positive integers (up to 81138962) that are relatively prime to 81138962.

Interesting facts

81138962 has 4 divisors, whose sum is 121708446
The reverse of 81138962 is 26983118
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million one hundred thirty-eight thousand nine hundred sixty-two

Notation

Scientific notation	8.1138962 × 10^7
Engineering notation	8.1138962 × 10^6

Prime Factorization of 81138962

Prime Factorization 2 × 40569481

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81138962	Product of the distinct prime numbers

The prime factorization of 81138962 is 2 × 40569481. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 5, 55, 47, 833, 960, 9231, 2648, 58220, 26573, 463191, 230353, 845662, 2825692, 26701950, 75126107, 494677602, 770815762, 269585990, 3572104322

Basic calculations (n = 81138962)

Multiplication

n×y

n×2	162277924
n×3	243416886
n×4	324555848
n×5	405694810

Division

n÷y

n÷2	40569481
n÷3	27046320.666667
n÷3	20284740.5
n÷5	16227792.4

Exponentiation

n^y

n²	6583531154437444
n³	5.3418088416572E+23
n⁴	4.3342882461448E+31
n⁵	3.5167964930099E+39

Nth Root

^y√n

²√n	9007.7168028308
³√n	432.92215921927
⁴√n	94.908992212702
⁵√n	38.180876099547

Divisors of 81138962

1, 2, 40569481, 81138962

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	-81138961	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 81138962 can be divided by 4 positive divisors. The sum of these divisors (counting 81138962) is 1, the average is 0.25.

Base conversion 81138962

Base	System	Value
2	Binary	100110101100001010100010010
3	Ternary	12122200021201202
4	Quaternary	10311201110102
5	Quinary	131232421322
6	Senary	12015031202
8	Octal	465412422
10	Decimal	81138962
12	Duodecimal	2320b502
16	Hexadecimal	4d61512
20	Vigesimal	1572782
36	Base36	1cb382

Cryptographic Hash Functions

md5	ff0703ca04e2e7732c23d749e5c116e9
sha1	b26d626746a7aa1e82badfa0a9fdb84bb4cc362d
sha256	3f8ad13ff1a0a6e89740085d3f8f14c4f95ec397d1fdc212b7efb6d7340845e8
sha512	c6094b5d46f8987b8cd8d92b0a7122d90752ae63ecdca617f39891547deac8ee7abdb110c954cdb849478316d10545909d2f27bbb486d2241d1007791f0a49cb
ripemd-160	c360f82edbebbbd92b1fbff500eb229f64fa6aa0

81138962 as geometric shapes

Circle

Radius = n

Diameter	162277924
Circumference	509811133.8782
Area	2.068277310946E+16

Sphere

Radius = n

Volume	2.2375716551775E+24
Surface area	8.2731092437841E+16
Circumference	509811133.8782

Square

Length = n

Perimeter	324555848
Area	6583531154437444
Diagonal	114747820.49728

Cube

Length = n

Surface area	39501186926624664
Volume	5.3418088416572E+23
Space diagonal	140536804.6574

Equilateral Triangle

Length = n

Perimeter	243416886
Area	2.8507526131746E+15
Altitude	70268402.3287

Triangular Pyramid

Length = n

Surface area	2.8507526131746E+15
Volume	6.2953820928967E+22
Height	38249273.499092