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

81490478 (number)

81490478 is an even 8-digits composite number following 81490477 and preceding 81490479. In scientific notation, it is written as 8.1490478 × 10^7. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 40712056 positive integers (up to 81490478) that are relatively prime to 81490478.

Interesting facts

81490478 has 8 divisors, whose sum is 122335272
The reverse of 81490478 is 87409418
Previous prime number is 1277

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5

Name

Name	eighty-one million four hundred ninety thousand four hundred seventy-eight

Notation

Scientific notation	8.1490478 × 10^7
Engineering notation	8.1490478 × 10^6

Prime Factorization of 81490478

Prime Factorization 2 × 1277 × 31907

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81490478	Product of the distinct prime numbers

The prime factorization of 81490478 is 2 × 1277 × 31907. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 12, 88, 624, 112, 764, 738, 43253, 98664, 498299, 871041, 6921933, 6754532, 88084902, 95316431, 78531410, 409642415, 6352768361, 3865798133

Basic calculations (n = 81490478)

Multiplication

n×y

n×2	162980956
n×3	244471434
n×4	325961912
n×5	407452390

Division

n÷y

n÷2	40745239
n÷3	27163492.666667
n÷3	20372619.5
n÷5	16298095.6

Exponentiation

n^y

n²	6640698004668484
n³	5.4115365465408E+23
n⁴	4.4098869989208E+31
n⁵	3.5936379946804E+39

Nth Root

^y√n

²√n	9027.207652425
³√n	433.5464373262
⁴√n	95.011618512816
⁵√n	38.213900903149

Divisors of 81490478

1, 2, 1277, 2554, 31907, 63814, 40745239, 81490478

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	-81490477	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 81490478 can be divided by 8 positive divisors. The sum of these divisors (counting 81490478) is 1, the average is 0.125.

Base conversion 81490478

Base	System	Value
2	Binary	100110110110111001000101110
3	Ternary	12200100010220212
4	Quaternary	10312313020232
5	Quinary	131330143403
6	Senary	12030342422
8	Octal	466671056
10	Decimal	81490478
12	Duodecimal	2335aa12
16	Hexadecimal	4db722e
20	Vigesimal	159663i
36	Base36	1cimge

Cryptographic Hash Functions

md5	665da4a7b5d19dfe165221f658021fa8
sha1	61ccf7d79ba29ad07d5bfb6fa3fded1f05603ae2
sha256	6bf0b7610f5cb8584b615ad7c401a1fa5d2d07822429d304074b393fc69aca8a
sha512	cba6e3e6361e8693126ce777cfdc4697d5cd922391a10dfd627e9fd3323cf6c3ada8467145015637a5e5cb979109bc79e96bb6f3d0bad099ba61d35fe846e41f
ripemd-160	1dc95961a60713a9cfac82efaffdd81af622636f

81490478 as geometric shapes

Circle

Radius = n

Diameter	162980956
Circumference	512019774.04464
Area	2.0862368066175E+16

Sphere

Radius = n

Volume	2.2667791278994E+24
Surface area	8.34494722647E+16
Circumference	512019774.04464

Square

Length = n

Perimeter	325961912
Area	6640698004668484
Diagonal	115244939.19187

Cube

Length = n

Surface area	39844188028010904
Volume	5.4115365465408E+23
Space diagonal	141145648.22907

Equilateral Triangle

Length = n

Perimeter	244471434
Area	2.8755065854518E+15
Altitude	70572824.114537

Triangular Pyramid

Length = n

Surface area	2.8755065854518E+15
Volume	6.3775569811631E+22
Height	38414979.730622