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

21000642 (number)

21000642 is an even 8-digits composite number following 21000641 and preceding 21000643. In scientific notation, it is written as 2.1000642 × 10^7. The sum of its digits is 15. It has a total of 4 prime factors and 16 positive divisors. There are 6433344 positive integers (up to 21000642) that are relatively prime to 21000642.

Interesting facts

21000642 has 16 divisors, whose sum is 32450880
The reverse of 21000642 is 24600012
Previous prime number is 307

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6

Name

Name	twenty-one million six hundred forty-two

Notation

Scientific notation	2.1000642 × 10^7
Engineering notation	2.1000642 × 10^6

Prime Factorization of 21000642

Prime Factorization 2 × 39 × 307 × 877

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	21000642	Product of the distinct prime numbers

The prime factorization of 21000642 is 2 × 39 × 307 × 877. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 17, 40, 998, 333, 3761, 7361, 86207, 79820, 916197, 359134, 6322791, 8597888, 31136102, 75368904, 469118426, 464699209, 8026333836, 9057945459

Basic calculations (n = 21000642)

Multiplication

n×y

n×2	42001284
n×3	63001926
n×4	84002568
n×5	105003210

Division

n÷y

n÷2	10500321
n÷3	7000214
n÷3	5250160.5
n÷5	4200128.4

Exponentiation

n^y

n²	441026964412164
n³	9.2618493919666E+21
n⁴	1.9450478333861E+29
n⁵	4.0847253221817E+36

Nth Root

^y√n

²√n	4582.6457423632
³√n	275.89522908458
⁴√n	67.6952416523
⁵√n	29.137112735126

Divisors of 21000642

1, 2, 39, 78, 307, 614, 877, 1754, 11973, 23946, 34203, 68406, 269239, 538478, 10500321, 21000642

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21000641	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21000642 can be divided by 16 positive divisors. The sum of these divisors (counting 21000642) is 1, the average is 0.0625.

Base conversion 21000642

Base	System	Value
2	Binary	1010000000111000111000010
3	Ternary	1110111221110120
4	Quaternary	1100013013002
5	Quinary	20334010032
6	Senary	2030041110
8	Octal	120070702
10	Decimal	21000642
12	Duodecimal	7049196
16	Hexadecimal	14071c2
20	Vigesimal	6b51c2
36	Base36	ci476

Cryptographic Hash Functions

md5	759076923b93d9ede0e64951053c5fbd
sha1	a4b3dda375343e445b3a6d7f415e28bb4162b1d5
sha256	10ad4362b6321b3a13af856b3046c543e582d4c9e0e8680fdeab52bc320fe581
sha512	49b3ece4c74f4c520829ee1eccf015635c4643e2a90d927ac91c677d0d9febbdc976f8da79b3b7994425def1a90873a5e43b550dcb192687d661bcfc90ecc9fd
ripemd-160	80a29ff9317e0cea7eca83f3ce5db0e393768fab

21000642 as geometric shapes

Circle

Radius = n

Diameter	42001284
Circumference	131950925.25574
Area	1.3855270714323E+15

Sphere

Radius = n

Volume	3.8795944011276E+22
Surface area	5.542108285729E+15
Circumference	131950925.25574

Square

Length = n

Perimeter	84002568
Area	441026964412164
Diagonal	29699392.734942

Cube

Length = n

Surface area	2646161786472984
Volume	9.2618493919666E+21
Space diagonal	36374178.935565

Equilateral Triangle

Length = n

Perimeter	63001926
Area	1.9097027746743E+14
Altitude	18187089.467782

Triangular Pyramid

Length = n

Surface area	1.9097027746743E+14
Volume	1.0915194185647E+21
Height	9899797.578314