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

206981 (number)

206981 is an odd 6-digits composite number following 206980 and preceding 206982. In scientific notation, it is written as 2.06981 × 10^5. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 205932 positive integers (up to 206981) that are relatively prime to 206981.

Interesting facts

206981 has 4 divisors, whose sum is 208032
The reverse of 206981 is 189602
Previous prime number is 787

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 26
Digital Root 8

Name

Name	two hundred six thousand nine hundred eighty-one

Notation

Scientific notation	2.06981 × 10^5
Engineering notation	2.06981 × 10^3

Prime Factorization of 206981

Prime Factorization 787 × 263

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	206981	Product of the distinct prime numbers

The prime factorization of 206981 is 787 × 263. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 28, 48, 959, 624, 7330, 3166, 93960, 64643, 446452, 390984, 8939834, 1359509, 6070670, 21311565, 760134043, 117758099, 6999861598, 8824762555

Basic calculations (n = 206981)

Multiplication

n×y

n×2	413962
n×3	620943
n×4	827924
n×5	1034905

Division

n÷y

n÷2	103490.5
n÷3	68993.666666667
n÷3	51745.25
n÷5	41396.2

Exponentiation

n^y

n²	42841134361
n³	8867300831174141
n⁴	1.8353627933373E+21
n⁵	3.7988522632774E+26

Nth Root

^y√n

²√n	454.95164578227
³√n	59.153007051898
⁴√n	21.329595537241
⁵√n	11.566077450625

Divisors of 206981

1, 263, 787, 206981

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	-206980	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 206981 can be divided by 4 positive divisors. The sum of these divisors (counting 206981) is 1, the average is 0.25.

Base conversion 206981

Base	System	Value
2	Binary	110010100010000101
3	Ternary	101111220222
4	Quaternary	302202011
5	Quinary	23110411
6	Senary	4234125
8	Octal	624205
10	Decimal	206981
12	Duodecimal	9b945
16	Hexadecimal	32885
20	Vigesimal	15h91
36	Base36	4fph

Cryptographic Hash Functions

md5	8bed10ac92a856caf15a8b6bb4301f2a
sha1	d5a766f6f67bc413e45c7a9476495a7765cb29f9
sha256	936fecb4947ba0697b38ae1f498b06ec3d01b9981b430dd8acff550980383617
sha512	18306975d06fa55c300d87ae42ff508f69b33a2d30ee4b7a28707ca517455966edb82f70cd7303545aa34aeacf540b5f8978a06145e954a3bbd921acd4d04464
ripemd-160	63b8767cab9676f4ce78acbc437cf13c0a4db138

206981 as geometric shapes

Circle

Radius = n

Diameter	413962
Circumference	1300499.9780653
Area	134589392979.97

Sphere

Radius = n

Volume	3.7143262864516E+16
Surface area	538357571919.88
Circumference	1300499.9780653

Square

Length = n

Perimeter	827924
Area	42841134361
Diagonal	292715.33735355

Cube

Length = n

Surface area	257046806166
Volume	8867300831174141
Space diagonal	358501.60820141

Equilateral Triangle

Length = n

Perimeter	620943
Area	18550755341.784
Altitude	179250.80410071

Triangular Pyramid

Length = n

Surface area	18550755341.784
Volume	1.0450214247574E+15
Height	97571.779117849