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

20697981 (number)

20697981 is an odd 8-digits composite number following 20697980 and preceding 20697982. In scientific notation, it is written as 2.0697981 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 13798652 positive integers (up to 20697981) that are relatively prime to 20697981.

Interesting facts

20697981 has 4 divisors, whose sum is 27597312
The reverse of 20697981 is 18979602
Previous prime number is 3

Basic properties

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

Name

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

Notation

Scientific notation	2.0697981 × 10^7
Engineering notation	2.0697981 × 10^6

Prime Factorization of 20697981

Prime Factorization 3 × 6899327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20697981	Product of the distinct prime numbers

The prime factorization of 20697981 is 3 × 6899327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 8, 39, 50, 928, 275, 4803, 7913, 29871, 8048, 559644, 259493, 2596240, 9598809, 75309861, 50237784, 87459154, 80069090, 5099627778, 8312642835

Basic calculations (n = 20697981)

Multiplication

n×y

n×2	41395962
n×3	62093943
n×4	82791924
n×5	103489905

Division

n÷y

n÷2	10348990.5
n÷3	6899327
n÷3	5174495.25
n÷5	4139596.2

Exponentiation

n^y

n²	428406417476361
n³	8.8671478892038E+21
n⁴	1.8353205853493E+29
n⁵	3.7987430604469E+36

Nth Root

^y√n

²√n	4549.503379491
³√n	274.56341082039
⁴√n	67.450006519577
⁵√n	29.052639607315

Divisors of 20697981

1, 3, 6899327, 20697981

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	-20697980	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 20697981 can be divided by 4 positive divisors. The sum of these divisors (counting 20697981) is 1, the average is 0.25.

Base conversion 20697981

Base	System	Value
2	Binary	1001110111101001101111101
3	Ternary	1102221120021220
4	Quaternary	1032331031331
5	Quinary	20244313411
6	Senary	2015343553
8	Octal	116751575
10	Decimal	20697981
12	Duodecimal	6b21bb9
16	Hexadecimal	13bd37d
20	Vigesimal	6974j1
36	Base36	cbmnx

Cryptographic Hash Functions

md5	d435d8577eb43670bf3f7152200aa012
sha1	c5dffa33408cb42ee42f2c9396d8dc2a907191a5
sha256	5539beacbba7f857eb1613dcf3477a4a3b45866c75eb1d8446cf225b1651372b
sha512	856562d844a2ec34b28d09dc0cecceb4530fc7a328266722105f50d8e7b6e0f1a2617f49c28136d7aa78b3c9b85dd174766dc36ae4e4b5628b98c3b8fbea5e8e
ripemd-160	103409b96f227ecd77c5ee2f70168c5f5f493847

20697981 as geometric shapes

Circle

Radius = n

Diameter	41395962
Circumference	130049250.10748
Area	1.3458784538945E+15

Sphere

Radius = n

Volume	3.7142622222689E+22
Surface area	5.3835138155778E+15
Circumference	130049250.10748

Square

Length = n

Perimeter	82791924
Area	428406417476361
Diagonal	29271365.443941

Cube

Length = n

Surface area	2570438504858166
Volume	8.8671478892038E+21
Space diagonal	35849954.706095

Equilateral Triangle

Length = n

Perimeter	62093943
Area	1.8550542033941E+14
Altitude	17924977.353048

Triangular Pyramid

Length = n

Surface area	1.8550542033941E+14
Volume	1.0450034003733E+21
Height	9757121.8146469