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

81597921 (number)

81597921 is an odd 8-digits composite number following 81597920 and preceding 81597922. In scientific notation, it is written as 8.1597921 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 52643760 positive integers (up to 81597921) that are relatively prime to 81597921.

Interesting facts

81597921 has 8 divisors, whose sum is 112306944
The reverse of 81597921 is 12979518
Previous prime number is 31

Basic properties

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

Name

Name	eighty-one million five hundred ninety-seven thousand nine hundred twenty-one

Notation

Scientific notation	8.1597921 × 10^7
Engineering notation	8.1597921 × 10^6

Prime Factorization of 81597921

Prime Factorization 3 × 31 × 877397

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81597921	Product of the distinct prime numbers

The prime factorization of 81597921 is 3 × 31 × 877397. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 3, 51, 4, 952, 384, 5633, 6476, 24234, 75693, 399107, 406621, 4485304, 9797535, 99783153, 33381581, 93430977, 938322539, 7399389464, 1848621071

Basic calculations (n = 81597921)

Multiplication

n×y

n×2	163195842
n×3	244793763
n×4	326391684
n×5	407989605

Division

n÷y

n÷2	40798960.5
n÷3	27199307
n÷3	20399480.25
n÷5	16319584.2

Exponentiation

n^y

n²	6658220711522241
n³	5.4329696761936E+23
n⁴	4.4331903043344E+31
n⁵	3.6173911223104E+39

Nth Root

^y√n

²√n	9033.1567571918
³√n	433.73689341312
⁴√n	95.042920605334
⁵√n	38.223972392736

Divisors of 81597921

1, 3, 31, 93, 877397, 2632191, 27199307, 81597921

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	-81597920	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 81597921 can be divided by 8 positive divisors. The sum of these divisors (counting 81597921) is 1, the average is 0.125.

Base conversion 81597921

Base	System	Value
2	Binary	100110111010001010111100001
3	Ternary	12200112121022020
4	Quaternary	10313101113201
5	Quinary	131342113141
6	Senary	12032532053
8	Octal	467212741
10	Decimal	81597921
12	Duodecimal	233b1029
16	Hexadecimal	4dd15e1
20	Vigesimal	159jeg1
36	Base36	1ckxcx

Cryptographic Hash Functions

md5	3dd3ba265ac62ce3c2d3f8b84840a22c
sha1	e1bda0a6e1eb13bb0dfc378425f161f255e1d5ad
sha256	b7688d46b1b833cd0aabf6ba0ccfb7ccf0a72a502633d811916716fc656d9a1f
sha512	b227064b02bb97db420ba9423a339e8d0e3f3b9f00f58e5550fbfe0e982386195ce0b7e2cfdcbd1cb348b071c9a6a28df5ade3619c2472ddfb195dd99086ad6e
ripemd-160	04d579a49464b1549ee64352f77c265ff89c9e3d

81597921 as geometric shapes

Circle

Radius = n

Diameter	163195842
Circumference	512694858.3236
Area	2.0917417273298E+16

Sphere

Radius = n

Volume	2.2757570162541E+24
Surface area	8.3669669093191E+16
Circumference	512694858.3236

Square

Length = n

Perimeter	326391684
Area	6658220711522241
Diagonal	115396886.53965

Cube

Length = n

Surface area	39949324269133446
Volume	5.4329696761936E+23
Space diagonal	141331744.96399

Equilateral Triangle

Length = n

Perimeter	244793763
Area	2.883094140091E+15
Altitude	70665872.481996

Triangular Pyramid

Length = n

Surface area	2.883094140091E+15
Volume	6.4028161666956E+22
Height	38465628.846549