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

21908081 (number)

21908081 is an odd 8-digits composite number following 21908080 and preceding 21908082. In scientific notation, it is written as 2.1908081 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 20073600 positive integers (up to 21908081) that are relatively prime to 21908081.

Interesting facts

21908081 has 8 divisors, whose sum is 23767464
The reverse of 21908081 is 18080912
Previous prime number is 137

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	2.1908081 × 10^7
Engineering notation	2.1908081 × 10^6

Prime Factorization of 21908081

Prime Factorization 13 × 137 × 12301

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21908081	Product of the distinct prime numbers

The prime factorization of 21908081 is 13 × 137 × 12301. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 1, 72, 16, 898, 8, 7258, 6982, 48167, 30916, 296344, 331276, 8591136, 6277750, 49754309, 86599203, 650578610, 660900257, 1747521051, 1070549461

Basic calculations (n = 21908081)

Multiplication

n×y

n×2	43816162
n×3	65724243
n×4	87632324
n×5	109540405

Division

n÷y

n÷2	10954040.5
n÷3	7302693.6666667
n÷3	5477020.25
n÷5	4381616.2

Exponentiation

n^y

n²	479964013102561
n³	1.0515090476136E+22
n⁴	2.3036545387352E+29
n⁵	5.0468650230627E+36

Nth Root

^y√n

²√n	4680.6069050925
³√n	279.81314488973
⁴√n	68.414961120303
⁵√n	29.384673368942

Divisors of 21908081

1, 13, 137, 1781, 12301, 159913, 1685237, 21908081

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21908080	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21908081 can be divided by 8 positive divisors. The sum of these divisors (counting 21908081) is 1, the average is 0.125.

Base conversion 21908081

Base	System	Value
2	Binary	1010011100100101001110001
3	Ternary	1112020001020102
4	Quaternary	1103210221301
5	Quinary	21102024311
6	Senary	2101322145
8	Octal	123445161
10	Decimal	21908081
12	Duodecimal	7406355
16	Hexadecimal	14e4a71
20	Vigesimal	6gia41
36	Base36	d1kdt

Cryptographic Hash Functions

md5	be7b13ae24592bd07f03577846663533
sha1	69dc84cdc82f797d431722540b1a80af60962b0e
sha256	502331111d008cb11d8e52a4ce699017f4fd04c2877428cdb08da7a3358a9bea
sha512	60e5485327c8ad6036981b1c76662644158c4f1c4e92380a5dffbff39f5e2d89614315ca879c8f4bc362f8a7320681d01d4ee33f7bfba3bc1a279d1e3008a166
ripemd-160	34197b9552aa9c716b64b4c3c5f102cfb4bf6917

21908081 as geometric shapes

Circle

Radius = n

Diameter	43816162
Circumference	137652532.6477
Area	1.5078514175505E+15

Sphere

Radius = n

Volume	4.4045507988881E+22
Surface area	6.0314056702019E+15
Circumference	137652532.6477

Square

Length = n

Perimeter	87632324
Area	479964013102561
Diagonal	30982705.275768

Cube

Length = n

Surface area	2879784078615366
Volume	1.0515090476136E+22
Space diagonal	37945909.388334

Equilateral Triangle

Length = n

Perimeter	65724243
Area	2.0783051412457E+14
Altitude	18972954.694167

Triangular Pyramid

Length = n

Surface area	2.0783051412457E+14
Volume	1.2392152967443E+21
Height	10327568.425256