21397978, twenty-one million three hundred ninety-seven thousand nine hundred seventy-eight: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

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

Interesting facts

21397978 has 8 divisors, whose sum is 36682272
The reverse of 21397978 is 87979312
Previous prime number is 7

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1

Name

Name	twenty-one million three hundred ninety-seven thousand nine hundred seventy-eight

Notation

Scientific notation	2.1397978 × 10^7
Engineering notation	2.1397978 × 10^6

Prime Factorization of 21397978

Prime Factorization 2 × 7 × 1528427

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21397978	Product of the distinct prime numbers

The prime factorization of 21397978 is 2 × 7 × 1528427. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 25, 86, 728, 432, 7402, 4278, 4783, 96350, 951974, 847679, 3418372, 5641347, 47851160, 86530238, 89423587, 580294020, 6409623255, 3389779222

Basic calculations (n = 21397978)

Multiplication

n×y

n×2	42795956
n×3	64193934
n×4	85591912
n×5	106989890

Division

n÷y

n÷2	10698989
n÷3	7132659.3333333
n÷3	5349494.5
n÷5	4279595.6

Exponentiation

n^y

n²	457873462488484
n³	9.7975662771124E+21
n⁴	2.0964810765119E+29
n⁵	4.4860455952619E+36

Nth Root

^y√n

²√n	4625.7948506176
³√n	277.62436543353
⁴√n	68.013196150582
⁵√n	29.246543563008

Divisors of 21397978

1, 2, 7, 14, 1528427, 3056854, 10698989, 21397978

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21397977	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21397978 can be divided by 8 positive divisors. The sum of these divisors (counting 21397978) is 1, the average is 0.125.

Base conversion 21397978

Base	System	Value
2	Binary	1010001101000000111011010
3	Ternary	1111021010111201
4	Quaternary	1101220013122
5	Quinary	20434213403
6	Senary	2042344414
8	Octal	121500732
10	Decimal	21397978
12	Duodecimal	71bb10a
16	Hexadecimal	14681da
20	Vigesimal	6deeii
36	Base36	cqmsa

Cryptographic Hash Functions

md5	9adf59888a642b0bb331de2d7002a204
sha1	d7d8e64600085e5f13f43399498b04be391ad554
sha256	e1aa1068097af0931fc8c6b912e01c61194c68a1471be4f24b029eeca0dcbf16
sha512	b7b8cf4c1d8a64289f85c84a3692c70e94e745dc0dadd049875f44ce8ec56bddb08a14b7a096f1770eb1cc46bd0d7d7bd5cb25187ab93a42582ba7770238b00d
ripemd-160	85fa1883d2253efeb42c95b696b06b52c8af2bcd

21397978 as geometric shapes

Circle

Radius = n

Diameter	42795956
Circumference	134447460.97295
Area	1.4384519060275E+15

Sphere

Radius = n

Volume	4.1039949652314E+22
Surface area	5.7538076241102E+15
Circumference	134447460.97295

Square

Length = n

Perimeter	85591912
Area	457873462488484
Diagonal	30261310.694961

Cube

Length = n

Surface area	2747240774930904
Volume	9.7975662771124E+21
Space diagonal	37062385.075241

Equilateral Triangle

Length = n

Perimeter	64193934
Area	1.9826502511688E+14
Altitude	18531192.537621

Triangular Pyramid

Length = n

Surface area	1.9826502511688E+14
Volume	1.1546542589451E+21
Height	10087103.564987