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

21381857 (number)

21381857 is an odd 8-digits composite number following 21381856 and preceding 21381858. In scientific notation, it is written as 2.1381857 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 18327300 positive integers (up to 21381857) that are relatively prime to 21381857.

Interesting facts

21381857 has 4 divisors, whose sum is 24436416
The reverse of 21381857 is 75818312
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8

Name

Name	twenty-one million three hundred eighty-one thousand eight hundred fifty-seven

Notation

Scientific notation	2.1381857 × 10^7
Engineering notation	2.1381857 × 10^6

Prime Factorization of 21381857

Prime Factorization 7 × 3054551

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21381857	Product of the distinct prime numbers

The prime factorization of 21381857 is 7 × 3054551. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 7, 41, 42, 560, 305, 1579, 7958, 34916, 83303, 711446, 720983, 382315, 2803700, 72921268, 86424076, 664619720, 247784383, 6510856608, 2652324461

Basic calculations (n = 21381857)

Multiplication

n×y

n×2	42763714
n×3	64145571
n×4	85527428
n×5	106909285

Division

n÷y

n÷2	10690928.5
n÷3	7127285.6666667
n÷3	5345464.25
n÷5	4276371.4

Exponentiation

n^y

n²	457183808768449
n³	9.7754388218023E+21
n⁴	2.0901703500003E+29
n⁵	4.4691723529345E+36

Nth Root

^y√n

²√n	4624.0520109532
³√n	277.55462820856
⁴√n	68.000382432404
⁵√n	29.242135429892

Divisors of 21381857

1, 7, 3054551, 21381857

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	-21381856	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 21381857 can be divided by 4 positive divisors. The sum of these divisors (counting 21381857) is 1, the average is 0.25.

Base conversion 21381857

Base	System	Value
2	Binary	1010001100100001011100001
3	Ternary	1111020022101122
4	Quaternary	1101210023201
5	Quinary	20433204412
6	Senary	2042142025
8	Octal	121441341
10	Decimal	21381857
12	Duodecimal	71b1915
16	Hexadecimal	14642e1
20	Vigesimal	6dcech
36	Base36	cqach

Cryptographic Hash Functions

md5	7923c428b829af6f1cbb4a0bcf6acb22
sha1	f84e6297edc45833dc2c0636792f966597ec10b2
sha256	a8f96be6540e6f4ed26bfdc6b41d585c0a93eafec7ab4d7d45d174140b20ad5b
sha512	7566e0dee28db61d4d494c0374e83e3942fd077dc386643e86a89a4e6a3897376cef65e512f69bc2d7d337862996ce65840cde29c11d541d0895cda30befddee
ripemd-160	28f54a9316559325474a4867f8c193d63c0247f9

21381857 as geometric shapes

Circle

Radius = n

Diameter	42763714
Circumference	134346169.74261
Area	1.4362852949672E+15

Sphere

Radius = n

Volume	4.0947262384254E+22
Surface area	5.7451411798686E+15
Circumference	134346169.74261

Square

Length = n

Perimeter	85527428
Area	457183808768449
Diagonal	30238512.158122

Cube

Length = n

Surface area	2743102852610694
Volume	9.7754388218023E+21
Space diagonal	37034462.684172

Equilateral Triangle

Length = n

Perimeter	64145571
Area	1.979663962962E+14
Altitude	18517231.342086

Triangular Pyramid

Length = n

Surface area	1.979663962962E+14
Volume	1.1520465133284E+21
Height	10079504.052707