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

661921 (number)

661921 is an odd 6-digits composite number following 661920 and preceding 661922. In scientific notation, it is written as 6.61921 × 10^5. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 599952 positive integers (up to 661921) that are relatively prime to 661921.

Interesting facts

661921 has 4 divisors, whose sum is 663552
The reverse of 661921 is 129166
Previous prime number is 767

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 25
Digital Root 7

Name

Name	six hundred sixty-one thousand nine hundred twenty-one

Notation

Scientific notation	6.61921 × 10^5
Engineering notation	6.61921 × 10^3

Prime Factorization of 661921

Prime Factorization 767 × 863

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	661921	Product of the distinct prime numbers

The prime factorization of 661921 is 767 × 863. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 2, 4, 29, 490, 329, 8812, 733, 72308, 83063, 510969, 922010, 8209442, 8731814, 33709386, 79631827, 515782090, 110361568, 4984224801, 1694307471

Basic calculations (n = 661921)

Multiplication

n×y

n×2	1323842
n×3	1985763
n×4	2647684
n×5	3309605

Division

n÷y

n÷2	330960.5
n÷3	220640.33333333
n÷3	165480.25
n÷5	132384.2

Exponentiation

n^y

n²	438139410241
n³	290013676566132961
n⁴	1.9196614280633E+23
n⁵	1.2706642121251E+29

Nth Root

^y√n

²√n	813.58527518632
³√n	87.150266579261
⁴√n	28.52341626079
⁵√n	14.593559459712

Divisors of 661921

1, 767, 863, 661921

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	-661920	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 661921 can be divided by 4 positive divisors. The sum of these divisors (counting 661921) is 1, the average is 0.25.

Base conversion 661921

Base	System	Value
2	Binary	10100001100110100001
3	Ternary	1020121222121
4	Quaternary	2201212201
5	Quinary	132140141
6	Senary	22104241
8	Octal	2414641
10	Decimal	661921
12	Duodecimal	27b081
16	Hexadecimal	a19a1
20	Vigesimal	42eg1
36	Base36	e6qp

Cryptographic Hash Functions

md5	1a7369cd082f1632c84619311c24a0f4
sha1	71ec88481754bfc669e5f3758f0478813d932b43
sha256	053abcace51966bb7aef70ec1ed0c0f3766f48dfd403de5af51bd9b4594a6d01
sha512	789ac595ac163cc276bc677b73a9ac5dca863ed86fe88c43b0055819fad6e8277634406a28099eeaa1f36d3c7987866622c1a4efe3bddb06c1e9e467e7781f8c
ripemd-160	85f0e003f153013ff40401529c81b6864fc817a0

661921 as geometric shapes

Circle

Radius = n

Diameter	1323842
Circumference	4158972.3017136
Area	1376455552461.3

Sphere

Radius = n

Volume	1.2148064476543E+18
Surface area	5505822209845.2
Circumference	4158972.3017136

Square

Length = n

Perimeter	2647684
Area	438139410241
Diagonal	936097.65541956

Cube

Length = n

Surface area	2628836461446
Volume	290013676566132961
Space diagonal	1146480.8025968

Equilateral Triangle

Length = n

Perimeter	1985763
Area	189719929833.92
Altitude	573240.4012984

Triangular Pyramid

Length = n

Surface area	189719929833.92
Volume	3.4178439556126E+16
Height	312032.55180652