21297978 (number)

21297978 is an even 8-digits composite number following 21297977 and preceding 21297979. In scientific notation, it is written as 2.1297978 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 48 positive divisors. There are 6551280 positive integers (up to 21297978) that are relatively prime to 21297978.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1297978 × 10^7
Engineering notation 2.1297978 × 10^6

Prime Factorization of 21297978

Prime Factorization 2 × 9 × 9 × 3 × 13 × 3371

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2366442
Product of the distinct prime numbers

The prime factorization of 21297978 is 2 × 9 × 9 × 3 × 13 × 3371. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21297978)

Multiplication

n×y
n×2 42595956
n×3 63893934
n×4 85191912
n×5 106489890

Division

n÷y
n÷2 10648989
n÷3 7099326
n÷3 5324494.5
n÷5 4259595.6

Exponentiation

ny
n2 453603866888484
n3 9.6608451777059E+21
n4 2.0575646805619E+29
n5 4.3821967300183E+36

Nth Root

y√n
2√n 4614.973239359
3√n 277.19121240485
4√n 67.933594335638
5√n 29.219156518337

Divisors of 21297978

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21297977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21297978 can be divided by 48 positive divisors. The sum of these divisors (counting 21297978) is 1, the average is 0.020833333333333.

Base conversion 21297978

Base System Value
2 Binary 1010001001111101100111010
3 Ternary 1111002001100000
4 Quaternary 1101033230322
5 Quinary 20423013403
6 Senary 2040253430
8 Octal 121175472
10 Decimal 21297978
12 Duodecimal 7171276
16 Hexadecimal 144fb3a
20 Vigesimal 6d24ii
36 Base36 cohmi

Cryptographic Hash Functions

md5 656f4a042bbaa65df22272614b99f3bb
sha1 446219ae46703d490caa66ab46f77b86ab89f74d
sha256 f1224b358b1e033a0ebbe953296c80e8cc8d9aa8c8a65818429d90074f89852d
sha512 995d10ba632ec6b3c2884fc67a59343ba36612f88c96b639906a5b6bca52d606e6ac754e8c319693c95a7be96874c6de79880fba739fd8ecb51e4cd528afb174
ripemd-160 de0eb725abbeafa46c20061e22a8a6369bedcb81

21297978 as geometric shapes

Circle

Radius = n
Diameter 42595956
Circumference 133819142.44223
Area 1.4250385758568E+15

Sphere

Radius = n
Volume 4.0467253650332E+22
Surface area 5.7001543034271E+15
Circumference 133819142.44223

Square

Length = n
Perimeter 85191912
Area 453603866888484
Diagonal 30119889.338724

Cube

Length = n
Surface area 2721623201330904
Volume 9.6608451777059E+21
Space diagonal 36889179.994484

Equilateral Triangle

Length = n
Perimeter 63893934
Area 1.9641623599014E+14
Altitude 18444589.997242

Triangular Pyramid

Length = n
Surface area 1.9641623599014E+14
Volume 1.1385415228582E+21
Height 10039963.112908