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

81397941 (number)

81397941 is an odd 8-digits composite number following 81397940 and preceding 81397942. In scientific notation, it is written as 8.1397941 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 54243072 positive integers (up to 81397941) that are relatively prime to 81397941.

Interesting facts

81397941 has 8 divisors, whose sum is 108575040
The reverse of 81397941 is 14979318
Previous prime number is 3623

Basic properties

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

Name

Name	eighty-one million three hundred ninety-seven thousand nine hundred forty-one

Notation

Scientific notation	8.1397941 × 10^7
Engineering notation	8.1397941 × 10^6

Prime Factorization of 81397941

Prime Factorization 3 × 3623 × 7489

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81397941	Product of the distinct prime numbers

The prime factorization of 81397941 is 3 × 3623 × 7489. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 6, 64, 29, 279, 56, 1984, 2457, 47185, 31614, 278875, 655563, 4005331, 3591450, 41113670, 37463958, 714888575, 449489791, 6781234614, 1637415237

Basic calculations (n = 81397941)

Multiplication

n×y

n×2	162795882
n×3	244193823
n×4	325591764
n×5	406989705

Division

n÷y

n÷2	40698970.5
n÷3	27132647
n÷3	20349485.25
n÷5	16279588.2

Exponentiation

n^y

n²	6625624799039481
n³	5.3931221648035E+23
n⁴	4.3898903977647E+31
n⁵	3.5732803959372E+39

Nth Root

^y√n

²√n	9022.0807467014
³√n	433.38226975281
⁴√n	94.984634266293
⁵√n	38.205218153579

Divisors of 81397941

1, 3, 3623, 7489, 10869, 22467, 27132647, 81397941

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	-81397940	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 81397941 can be divided by 8 positive divisors. The sum of these divisors (counting 81397941) is 1, the average is 0.125.

Base conversion 81397941

Base	System	Value
2	Binary	100110110100000100010110101
3	Ternary	12200011102222120
4	Quaternary	10312200202311
5	Quinary	131314213231
6	Senary	12024350153
8	Octal	466404265
10	Decimal	81397941
12	Duodecimal	23315359
16	Hexadecimal	4da08b5
20	Vigesimal	158eeh1
36	Base36	1cgn1x

Cryptographic Hash Functions

md5	9543e0344c2564e5099c177cc155cc24
sha1	815acddfff09e66f254b0f324a45f219cc421743
sha256	a3dc5fcca0c7d0fa16925061a8d9a84729e37340487cf3c8af9ec6f048201dcf
sha512	a7b3738e1b502523bdd6e668eb443f13d77ac7b28c3292dafe78f023e2e4f04b4a17e699cb18665d96d4304581d5a5792c1e21d546b56e7fa019de8784030f5c
ripemd-160	bed7eb434041932c07402345e4fe3590a459ecfa

81397941 as geometric shapes

Circle

Radius = n

Diameter	162795882
Circumference	511438346.92587
Area	2.0815014194105E+16

Sphere

Radius = n

Volume	2.2590657297145E+24
Surface area	8.3260056776419E+16
Circumference	511438346.92587

Square

Length = n

Perimeter	325591764
Area	6625624799039481
Diagonal	115114072.11145

Cube

Length = n

Surface area	39753748794236886
Volume	5.3931221648035E+23
Space diagonal	140985369.44349

Equilateral Triangle

Length = n

Perimeter	244193823
Area	2.8689796959562E+15
Altitude	70492684.721747

Triangular Pyramid

Length = n

Surface area	2.8689796959562E+15
Volume	6.3558554241667E+22
Height	38371357.370482