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

81409938 (number)

81409938 is an even 8-digits composite number following 81409937 and preceding 81409939. In scientific notation, it is written as 8.1409938 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 27136644 positive integers (up to 81409938) that are relatively prime to 81409938.

Interesting facts

81409938 has 8 divisors, whose sum is 162819888
The reverse of 81409938 is 83990418
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	eighty-one million four hundred nine thousand nine hundred thirty-eight

Notation

Scientific notation	8.1409938 × 10^7
Engineering notation	8.1409938 × 10^6

Prime Factorization of 81409938

Prime Factorization 2 × 3 × 13568323

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81409938	Product of the distinct prime numbers

The prime factorization of 81409938 is 2 × 3 × 13568323. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 9, 79, 2, 147, 47, 9313, 3078, 52346, 89181, 273790, 859617, 7124057, 3802995, 26281166, 13052079, 912911965, 31084078, 877267154, 3264771082

Basic calculations (n = 81409938)

Multiplication

n×y

n×2	162819876
n×3	244229814
n×4	325639752
n×5	407049690

Division

n÷y

n÷2	40704969
n÷3	27136646
n÷3	20352484.5
n÷5	16281987.6

Exponentiation

n^y

n²	6627578005163844
n³	5.3955071449055E+23
n⁴	4.3924790214532E+31
n⁵	3.575914448028E+39

Nth Root

^y√n

²√n	9022.745591005
³√n	433.40356034736
⁴√n	94.988133948431
⁵√n	38.206344277845

Divisors of 81409938

1, 2, 3, 6, 13568323, 27136646, 40704969, 81409938

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	-81409937	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 81409938 can be divided by 8 positive divisors. The sum of these divisors (counting 81409938) is 1, the average is 0.125.

Base conversion 81409938

Base	System	Value
2	Binary	100110110100011011110010010
3	Ternary	12200012001102220
4	Quaternary	10312203132102
5	Quinary	131320104223
6	Senary	12024521510
8	Octal	466433622
10	Decimal	81409938
12	Duodecimal	23320296
16	Hexadecimal	4da3792
20	Vigesimal	158g4gi
36	Base36	1cgwb6

Cryptographic Hash Functions

md5	33584f12c2a2c7f812fc3594806070c2
sha1	b13aa54bab5337b63454d49cf874a98e5c658a30
sha256	7a5d1dcbfb747ad8be4e4ecfcc300440d473f26515a3101fd6cd628f7be91572
sha512	1f37a336ff43ef84706a19b701e461f26e07d492208ca8c48f36b9a131a296722cb89d3ff6534282523a4770c3cb583fb5e6d48cf27c73012d25e33983f9db9a
ripemd-160	1755ad190a103340b908e9c28568b48b340cdc9a

81409938 as geometric shapes

Circle

Radius = n

Diameter	162819876
Circumference	511513726.3
Area	2.0821150372116E+16

Sphere

Radius = n

Volume	2.2600647478435E+24
Surface area	8.3284601488464E+16
Circumference	511513726.3

Square

Length = n

Perimeter	325639752
Area	6627578005163844
Diagonal	115131038.43155

Cube

Length = n

Surface area	39765468030983064
Volume	5.3955071449055E+23
Space diagonal	141006148.85703

Equilateral Triangle

Length = n

Perimeter	244229814
Area	2.8698254590174E+15
Altitude	70503074.428516

Triangular Pyramid

Length = n

Surface area	2.8698254590174E+15
Volume	6.3586661501719E+22
Height	38377012.810518