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

21495987 (number)

21495987 is an odd 8-digits composite number following 21495986 and preceding 21495988. In scientific notation, it is written as 2.1495987 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 6 positive divisors. There are 14330652 positive integers (up to 21495987) that are relatively prime to 21495987.

Interesting facts

21495987 has 6 divisors, whose sum is 31049772
The reverse of 21495987 is 78959412
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9

Name

Name	twenty-one million four hundred ninety-five thousand nine hundred eighty-seven

Notation

Scientific notation	2.1495987 × 10^7
Engineering notation	2.1495987 × 10^6

Prime Factorization of 21495987

Prime Factorization 3 × 3 × 2388443

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	7165329	Product of the distinct prime numbers

The prime factorization of 21495987 is 3 × 3 × 2388443. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 27, 80, 779, 894, 1191, 9605, 35105, 29513, 390180, 527664, 5132618, 8564899, 86731733, 11796998, 929036957, 507337489, 4501632117, 697800961

Basic calculations (n = 21495987)

Multiplication

n×y

n×2	42991974
n×3	64487961
n×4	85983948
n×5	107479935

Division

n÷y

n÷2	10747993.5
n÷3	7165329
n÷3	5373996.75
n÷5	4299197.4

Exponentiation

n^y

n²	462077457104169
n³	9.9328110109043E+21
n⁴	2.1351557636386E+29
n⁵	4.5897280538149E+36

Nth Root

^y√n

²√n	4636.3764946346
³√n	278.04758687133
⁴√n	68.090942823804
⁵√n	29.273286157558

Divisors of 21495987

1, 3, 9, 2388443, 7165329, 21495987

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	-21495986	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 21495987 can be divided by 6 positive divisors. The sum of these divisors (counting 21495987) is 1, the average is 0.16666666666667.

Base conversion 21495987

Base	System	Value
2	Binary	1010010000000000010110011
3	Ternary	1111110002221200
4	Quaternary	1102000002303
5	Quinary	21000332422
6	Senary	2044422243
8	Octal	122000263
10	Decimal	21495987
12	Duodecimal	7247983
16	Hexadecimal	14800b3
20	Vigesimal	6e6jj7
36	Base36	csqer

Cryptographic Hash Functions

md5	a36a22ca3d9d685c27b2cc19c901f68c
sha1	38076044aa7fbf0d56774534c634ad0f8111aaef
sha256	77670c2c64c2af9821f4ee05a5bda44ea1942d50dfe38cc73e114f2136e72640
sha512	54a17b80a9f2892045d670da31651baa55b0cf1724d7bfa842013c4bac59be9120e33b43280a1e32ef626bba8712b8a2e76ce95629bbe9643e0755090d7174a2
ripemd-160	2bdb1f94d9c511bbc04c234da73f5640dbf1689e

21495987 as geometric shapes

Circle

Radius = n

Diameter	42991974
Circumference	135063269.68172
Area	1.4516591446279E+15

Sphere

Radius = n

Volume	4.160646146847E+22
Surface area	5.8066365785116E+15
Circumference	135063269.68172

Square

Length = n

Perimeter	85983948
Area	462077457104169
Diagonal	30399916.351996

Cube

Length = n

Surface area	2772464742625014
Volume	9.9328110109043E+21
Space diagonal	37232141.64284

Equilateral Triangle

Length = n

Perimeter	64487961
Area	2.0008540818416E+14
Altitude	18616070.82142

Triangular Pyramid

Length = n

Surface area	2.0008540818416E+14
Volume	1.1705930036758E+21
Height	10133305.450665