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

21998981 (number)

21998981 is an odd 8-digits composite number following 21998980 and preceding 21998982. In scientific notation, it is written as 2.1998981 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 21670572 positive integers (up to 21998981) that are relatively prime to 21998981.

Interesting facts

21998981 has 4 divisors, whose sum is 22327392
The reverse of 21998981 is 18989912
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	twenty-one million nine hundred ninety-eight thousand nine hundred eighty-one

Notation

Scientific notation	2.1998981 × 10^7
Engineering notation	2.1998981 × 10^6

Prime Factorization of 21998981

Prime Factorization 67 × 328343

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21998981	Product of the distinct prime numbers

The prime factorization of 21998981 is 67 × 328343. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 1, 94, 97, 869, 639, 2676, 7082, 14617, 51743, 546381, 23543, 9747459, 4737539, 62625263, 8832325, 994020487, 769668298, 496769873, 2496597923

Basic calculations (n = 21998981)

Multiplication

n×y

n×2	43997962
n×3	65996943
n×4	87995924
n×5	109994905

Division

n÷y

n÷2	10999490.5
n÷3	7332993.6666667
n÷3	5499745.25
n÷5	4399796.2

Exponentiation

n^y

n²	483955165038361
n³	1.0646520480531E+22
n⁴	2.3421260176731E+29
n⁵	5.1524385762396E+36

Nth Root

^y√n

²√n	4690.3071328006
³√n	280.19960681984
⁴√n	68.485817019297
⁵√n	29.409017306199

Divisors of 21998981

1, 67, 328343, 21998981

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	-21998980	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 21998981 can be divided by 4 positive divisors. The sum of these divisors (counting 21998981) is 1, the average is 0.25.

Base conversion 21998981

Base	System	Value
2	Binary	1010011111010110110000101
3	Ternary	1112101122221002
4	Quaternary	1103322312011
5	Quinary	21112431411
6	Senary	2103303045
8	Octal	123726605
10	Decimal	21998981
12	Duodecimal	744aa85
16	Hexadecimal	14fad85
20	Vigesimal	6h9h91
36	Base36	d3iit

Cryptographic Hash Functions

md5	c726d9a51f50193adacab3c16f86a664
sha1	2646dae85b05b76a9e79a4a138539d96f2e7304b
sha256	9734a4624d0e233577c612470ca375db14cfeb308c3ed185b80263046dc61cbb
sha512	8266845b116cc59a3b3d6a5009a41b0a73ee37934e0a5ac42147fe04e1151d35cd1dfd46e5b31f0a052e1258286f41fcf488e7884ef7111d96fe009ac1662ecc
ripemd-160	9cef5cc671fda622ffe6e5b967f18e60730c2b00

21998981 as geometric shapes

Circle

Radius = n

Diameter	43997962
Circumference	138223674.19212
Area	1.5203899911514E+15

Sphere

Radius = n

Volume	4.4596040703905E+22
Surface area	6.0815599646054E+15
Circumference	138223674.19212

Square

Length = n

Perimeter	87995924
Area	483955165038361
Diagonal	31111257.288588

Cube

Length = n

Surface area	2903730990230166
Volume	1.0646520480531E+22
Space diagonal	38103352.806742

Equilateral Triangle

Length = n

Perimeter	65996943
Area	2.0955873360796E+14
Altitude	19051676.403371

Triangular Pyramid

Length = n

Surface area	2.0955873360796E+14
Volume	1.2547044713041E+21
Height	10370419.096196