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

21139947 (number)

21139947 is an odd 8-digits composite number following 21139946 and preceding 21139948. In scientific notation, it is written as 2.1139947 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 10 positive divisors. There are 14093244 positive integers (up to 21139947) that are relatively prime to 21139947.

Interesting facts

21139947 has 10 divisors, whose sum is 31579548
The reverse of 21139947 is 74993112
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9

Name

Name	twenty-one million one hundred thirty-nine thousand nine hundred forty-seven

Notation

Scientific notation	2.1139947 × 10^7
Engineering notation	2.1139947 × 10^6

Prime Factorization of 21139947

Prime Factorization 3 × 9 × 3 × 260987

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	7046649	Product of the distinct prime numbers

The prime factorization of 21139947 is 3 × 9 × 3 × 260987. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 7, 24, 94, 3, 454, 3777, 9055, 18280, 38275, 732297, 476641, 1141318, 1068881, 49342396, 94905076, 67734172, 755663944, 4591205172, 8739862966

Basic calculations (n = 21139947)

Multiplication

n×y

n×2	42279894
n×3	63419841
n×4	84559788
n×5	105699735

Division

n÷y

n÷2	10569973.5
n÷3	7046649
n÷3	5284986.75
n÷5	4227989.4

Exponentiation

n^y

n²	446897359162809
n³	9.4473864871417E+21
n⁴	1.9971724962669E+29
n⁵	4.2220120720941E+36

Nth Root

^y√n

²√n	4597.8198094314
³√n	276.50392341726
⁴√n	67.807225348273
⁵√n	29.175666017096

Divisors of 21139947

1, 3, 9, 27, 81, 260987, 782961, 2348883, 7046649, 21139947

10 divisors

τ	Total Divisors	10	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21139946	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.1	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	10	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21139947 can be divided by 10 positive divisors. The sum of these divisors (counting 21139947) is 1, the average is 0.1.

Base conversion 21139947

Base	System	Value
2	Binary	1010000101001000111101011
3	Ternary	1110210000120000
4	Quaternary	1100221013223
5	Quinary	20402434242
6	Senary	2033034043
8	Octal	120510753
10	Decimal	21139947
12	Duodecimal	70b5923
16	Hexadecimal	14291eb
20	Vigesimal	6c29h7
36	Base36	cl3or

Cryptographic Hash Functions

md5	3d1546419c2030c2b4eff5bd010f07b6
sha1	7d10f162802386e0505b803685f33d9260e654c5
sha256	ebb551ca12eb0fe24f91edc9248914ef7af92fc83cb63e6dc29419a1c6a67200
sha512	ff022c97666efff38a8302f08edabb481606225b5725018084dc53a0aabdd9150aa84f2ba829217d954afd27c2d471451c17f618af1a6f01363a69feab12e0c4
ripemd-160	3dac78a7e65c5e74032962359eac7b25fb5596d8

21139947 as geometric shapes

Circle

Radius = n

Diameter	42279894
Circumference	132826204.38496
Area	1.4039694604546E+15

Sphere

Radius = n

Volume	3.9573119978171E+22
Surface area	5.6158778418182E+15
Circumference	132826204.38496

Square

Length = n

Perimeter	84559788
Area	446897359162809
Diagonal	29896399.755248

Cube

Length = n

Surface area	2681384154976854
Volume	9.4473864871417E+21
Space diagonal	36615462.273313

Equilateral Triangle

Length = n

Perimeter	63419841
Area	1.9351223295959E+14
Altitude	18307731.136657

Triangular Pyramid

Length = n

Surface area	1.9351223295959E+14
Volume	1.1133851749247E+21
Height	9965466.5850828