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

81998243 (number)

81998243 is an odd 8-digits composite number following 81998242 and preceding 81998244. In scientific notation, it is written as 8.1998243 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 74304648 positive integers (up to 81998243) that are relatively prime to 81998243.

Interesting facts

81998243 has 8 divisors, whose sum is 90067200
The reverse of 81998243 is 34289918
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	eighty-one million nine hundred ninety-eight thousand two hundred forty-three

Notation

Scientific notation	8.1998243 × 10^7
Engineering notation	8.1998243 × 10^6

Prime Factorization of 81998243

Prime Factorization 23 × 19 × 187639

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81998243	Product of the distinct prime numbers

The prime factorization of 81998243 is 23 × 19 × 187639. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 9, 44, 83, 140, 855, 5208, 8920, 85045, 4264, 601404, 955744, 8103451, 7710982, 22679720, 32225660, 542038868, 416727214, 6542255533, 5244021391

Basic calculations (n = 81998243)

Multiplication

n×y

n×2	163996486
n×3	245994729
n×4	327992972
n×5	409991215

Division

n÷y

n÷2	40999121.5
n÷3	27332747.666667
n÷3	20499560.75
n÷5	16399648.6

Exponentiation

n^y

n²	6723711855087049
n³	5.5133255855541E+23
n⁴	4.5208301110238E+31
n⁵	3.7070012600545E+39

Nth Root

^y√n

²√n	9055.2881235221
³√n	434.44504560593
⁴√n	95.159277653427
⁵√n	38.261404612434

Divisors of 81998243

1, 19, 23, 437, 187639, 3565141, 4315697, 81998243

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	-81998242	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 81998243 can be divided by 8 positive divisors. The sum of these divisors (counting 81998243) is 1, the average is 0.125.

Base conversion 81998243

Base	System	Value
2	Binary	100111000110011000110100011
3	Ternary	12201021221102222
4	Quaternary	10320303012203
5	Quinary	131442420433
6	Senary	12045301255
8	Octal	470630643
10	Decimal	81998243
12	Duodecimal	2356482b
16	Hexadecimal	4e331a3
20	Vigesimal	15c9fc3
36	Base36	1cti8z

Cryptographic Hash Functions

md5	1eac399ed3a3abe485d0bdeff4a7e60b
sha1	653e6487923d61b12e8ddddcede423e4bdcd1224
sha256	9011a2f0be28e1db9019488688d6d4765722a3c7956a32b9b8093d10c8d4188e
sha512	84546bc1df1ee06596d6f131696116d3ed6c80c321b9b5408f02618714469e2df49343a7e5ab4a603cc429e4747291f2ef8f86e8ae38e8330a725a65985b2304
ripemd-160	b3a0ff20df5cb301e10c05004590b87bdd945f46

81998243 as geometric shapes

Circle

Radius = n

Diameter	163996486
Circumference	515210155.63214
Area	2.1123163768796E+16

Sphere

Radius = n

Volume	2.3094164208567E+24
Surface area	8.4492655075184E+16
Circumference	515210155.63214

Square

Length = n

Perimeter	327992972
Area	6723711855087049
Diagonal	115963027.34136

Cube

Length = n

Surface area	40342271130522294
Volume	5.5133255855541E+23
Space diagonal	142025123.00738

Equilateral Triangle

Length = n

Perimeter	245994729
Area	2.911452637116E+15
Altitude	71012561.50369

Triangular Pyramid

Length = n

Surface area	2.911452637116E+15
Volume	6.4975165140576E+22
Height	38654342.447122