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

21490861 (number)

21490861 is an odd 8-digits composite number following 21490860 and preceding 21490862. In scientific notation, it is written as 2.1490861 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 6 positive divisors. There are 18420696 positive integers (up to 21490861) that are relatively prime to 21490861.

Interesting facts

21490861 has 6 divisors, whose sum is 24999630
The reverse of 21490861 is 16809412
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twenty-one million four hundred ninety thousand eight hundred sixty-one

Notation

Scientific notation	2.1490861 × 10^7
Engineering notation	2.1490861 × 10^6

Prime Factorization of 21490861

Prime Factorization 7 × 7 × 438589

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	3070123	Product of the distinct prime numbers

The prime factorization of 21490861 is 7 × 7 × 438589. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 2, 67, 49, 466, 483, 4292, 911, 40982, 1337, 642113, 800272, 4294608, 3570477, 97034408, 91823461, 719441900, 576737641, 8308388967, 3441811396

Basic calculations (n = 21490861)

Multiplication

n×y

n×2	42981722
n×3	64472583
n×4	85963444
n×5	107454305

Division

n÷y

n÷2	10745430.5
n÷3	7163620.3333333
n÷3	5372715.25
n÷5	4298172.2

Exponentiation

n^y

n²	461857106521321
n³	9.9257068781119E+21
n⁴	2.1331198684425E+29
n⁵	4.5842582589035E+36

Nth Root

^y√n

²√n	4635.8236592864
³√n	278.02548374983
⁴√n	68.08688316619
⁵√n	29.271889904575

Divisors of 21490861

1, 7, 49, 438589, 3070123, 21490861

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21490860	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490861 can be divided by 6 positive divisors. The sum of these divisors (counting 21490861) is 1, the average is 0.16666666666667.

Base conversion 21490861

Base	System	Value
2	Binary	1010001111110110010101101
3	Ternary	1111102211220211
4	Quaternary	1101332302231
5	Quinary	21000201421
6	Senary	2044342421
8	Octal	121766255
10	Decimal	21490861
12	Duodecimal	7244a11
16	Hexadecimal	147ecad
20	Vigesimal	6e6731
36	Base36	csmgd

Cryptographic Hash Functions

md5	fb15bad3069a4e1bdf620152569c8071
sha1	0538fdb0b6e8dd3d77de4fa2df85552ec86567f5
sha256	17b736d2d98dad430dd7bef2d5bc11bf3cdb34df04aae439f33c8eace9cb3ae5
sha512	007e541e242a09ace3b039465699eb512de4a1aac19a96058bd5ccdaf1074261c7ef5ab3b58905d9a06f351ae495bf63c97543b351b3b49ad28a320eb0aea9ab
ripemd-160	1d9c227a464733b530c4f3735c993643b4dd9b24

21490861 as geometric shapes

Circle

Radius = n

Diameter	42981722
Circumference	135031062.07384
Area	1.4509668928556E+15

Sphere

Radius = n

Volume	4.1576703746616E+22
Surface area	5.8038675714225E+15
Circumference	135031062.07384

Square

Length = n

Perimeter	85963444
Area	461857106521321
Diagonal	30392667.093275

Cube

Length = n

Surface area	2771142639127926
Volume	9.9257068781119E+21
Space diagonal	37223263.1504

Equilateral Triangle

Length = n

Perimeter	64472583
Area	1.9998999358292E+14
Altitude	18611631.5752

Triangular Pyramid

Length = n

Surface area	1.9998999358292E+14
Volume	1.1697557735971E+21
Height	10130889.031092