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

21347981 (number)

21347981 is an odd 8-digits composite number following 21347980 and preceding 21347982. In scientific notation, it is written as 2.1347981 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 21286464 positive integers (up to 21347981) that are relatively prime to 21347981.

Interesting facts

21347981 has 4 divisors, whose sum is 21409500
The reverse of 21347981 is 18974312
Previous prime number is 349

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 forty-seven thousand nine hundred eighty-one

Notation

Scientific notation	2.1347981 × 10^7
Engineering notation	2.1347981 × 10^6

Prime Factorization of 21347981

Prime Factorization 349 × 61169

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21347981	Product of the distinct prime numbers

The prime factorization of 21347981 is 349 × 61169. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 3, 5, 2, 824, 28, 7175, 2902, 66062, 75709, 885664, 569955, 5457513, 590882, 83267404, 53857030, 27650827, 495040533, 3238876018, 4134079822

Basic calculations (n = 21347981)

Multiplication

n×y

n×2	42695962
n×3	64043943
n×4	85391924
n×5	106739905

Division

n÷y

n÷2	10673990.5
n÷3	7115993.6666667
n÷3	5336995.25
n÷5	4269596.2

Exponentiation

n^y

n²	455736292776361
n³	9.7290497192002E+21
n⁴	2.0769556855354E+29
n⁵	4.4338810512652E+36

Nth Root

^y√n

²√n	4620.3875378587
³√n	277.40797099827
⁴√n	67.973432588466
⁵√n	29.232863691166

Divisors of 21347981

1, 349, 61169, 21347981

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	-21347980	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 21347981 can be divided by 4 positive divisors. The sum of these divisors (counting 21347981) is 1, the average is 0.25.

Base conversion 21347981

Base	System	Value
2	Binary	1010001011011111010001101
3	Ternary	1111011120220222
4	Quaternary	1101123322031
5	Quinary	20431113411
6	Senary	2041321125
8	Octal	121337215
10	Decimal	21347981
12	Duodecimal	71961a5
16	Hexadecimal	145be8d
20	Vigesimal	6d89j1
36	Base36	cpk7h

Cryptographic Hash Functions

md5	65589fd7ec38ee6525d803a1d12328e4
sha1	b1a14e4f9f0e13df36cb14e2812c06a4643ddd73
sha256	58766165297560de71fbc8234b8e25c6ed8fc8af1156dd78f5e96f942b9db5a8
sha512	cec97b774f7d226d09ec34f8955e720ff92c92853b434680e7ff15ca09157f8aadbf273cbc47627453fc03496b19c1eedad4bebf612c5ab37554609de38dc783
ripemd-160	e1d96ffa0fca2a980b9ac636157a48b391396b61

21347981 as geometric shapes

Circle

Radius = n

Diameter	42695962
Circumference	134133320.55715
Area	1.4317377893605E+15

Sphere

Radius = n

Volume	4.0752948165666E+22
Surface area	5.7269511574419E+15
Circumference	134133320.55715

Square

Length = n

Perimeter	85391924
Area	455736292776361
Diagonal	30190604.259483

Cube

Length = n

Surface area	2734417756658166
Volume	9.7290497192002E+21
Space diagonal	36975787.731015

Equilateral Triangle

Length = n

Perimeter	64043943
Area	1.9733960348544E+14
Altitude	18487893.865508

Triangular Pyramid

Length = n

Surface area	1.9733960348544E+14
Volume	1.1465795051579E+21
Height	10063534.753161