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

642721 (number)

642721 is an odd 6-digits composite number following 642720 and preceding 642722. In scientific notation, it is written as 6.42721 × 10^5. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 627732 positive integers (up to 642721) that are relatively prime to 642721.

Interesting facts

642721 has 4 divisors, whose sum is 657712
The reverse of 642721 is 127246
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 22
Digital Root 4

Name

Name	six hundred forty-two thousand seven hundred twenty-one

Notation

Scientific notation	6.42721 × 10^5
Engineering notation	6.42721 × 10^3

Prime Factorization of 642721

Prime Factorization 43 × 14947

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	642721	Product of the distinct prime numbers

The prime factorization of 642721 is 43 × 14947. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 53, 84, 615, 80, 6565, 885, 77969, 87659, 378366, 869184, 2751090, 2294601, 38651795, 51056121, 683135455, 619859202, 2344735221, 5642923956

Basic calculations (n = 642721)

Multiplication

n×y

n×2	1285442
n×3	1928163
n×4	2570884
n×5	3213605

Division

n÷y

n÷2	321360.5
n÷3	214240.33333333
n÷3	160680.25
n÷5	128544.2

Exponentiation

n^y

n²	413090283841
n³	265501800320571361
n⁴	1.7064358260384E+23
n⁵	1.0967621405472E+29

Nth Root

^y√n

²√n	801.69882125397
³√n	86.299344445
⁴√n	28.314286522072
⁵√n	14.507898149486

Divisors of 642721

1, 43, 14947, 642721

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-642720	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 642721 can be divided by 4 positive divisors. The sum of these divisors (counting 642721) is 1, the average is 0.25.

Base conversion 642721

Base	System	Value
2	Binary	10011100111010100001
3	Ternary	1012122122111
4	Quaternary	2130322201
5	Quinary	131031341
6	Senary	21435321
8	Octal	2347241
10	Decimal	642721
12	Duodecimal	26bb41
16	Hexadecimal	9cea1
20	Vigesimal	406g1
36	Base36	drxd

Cryptographic Hash Functions

md5	f32e3f54ba317b4a5585950c5d6ed413
sha1	03a331b503c0497a3d4cfacd5742d34739d29080
sha256	fc68f067544cfbd2aa1fe0c26450e57636d0c3efe7265a1d2640a57915a98e1d
sha512	d1ebe2f4285eec2b7267a38393d4cb7ea4dc9a1c51968fdc08698dcc532990cbee8a6f4ada1868fb6e8dd4b138c86b9ffa2cd3b47dd88e44cd58964d2c0676fa
ripemd-160	862a3123061b1108529bcece9425bf8a5d1eebbc

642721 as geometric shapes

Circle

Radius = n

Diameter	1285442
Circumference	4038335.1438158
Area	1297761400984.2

Sphere

Radius = n

Volume	1.112131340536E+18
Surface area	5191045603936.8
Circumference	4038335.1438158

Square

Length = n

Perimeter	2570884
Area	413090283841
Diagonal	908944.755022

Cube

Length = n

Surface area	2478541703046
Volume	265501800320571361
Space diagonal	1113225.4270915

Equilateral Triangle

Length = n

Perimeter	1928163
Area	178873339931.42
Altitude	556612.71354574

Triangular Pyramid

Length = n

Surface area	178873339931.42
Volume	3.1289687237319E+16
Height	302981.58500733