21497931 (number)

21497931 is an odd 8-digits composite number following 21497930 and preceding 21497932. In scientific notation, it is written as 2.1497931 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 11339136 positive integers (up to 21497931) that are relatively prime to 21497931.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-seven thousand nine hundred thirty-one

Notation

Scientific notation 2.1497931 × 10^7
Engineering notation 2.1497931 × 10^6

Prime Factorization of 21497931

Prime Factorization 7 × 9 × 13 × 26249

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21497931
Product of the distinct prime numbers

The prime factorization of 21497931 is 7 × 9 × 13 × 26249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 60, 34, 200, 33, 4848, 4899, 6761, 87243, 142393, 54825, 1324293, 9359711, 76777084, 28712409, 557640389, 688936063, 4195535523, 1393418415

Basic calculations (n = 21497931)

Multiplication

n×y
n×2 42995862
n×3 64493793
n×4 85991724
n×5 107489655

Division

n÷y
n÷2 10748965.5
n÷3 7165977
n÷3 5374482.75
n÷5 4299586.2

Exponentiation

ny
n2 462161037280761
n3 9.9355060903502E+21
n4 2.1359282438043E+29
n5 4.5918038006256E+36

Nth Root

y√n
2√n 4636.5861363723
3√n 278.05596840808
4√n 68.092482230951
5√n 29.27381560717

Divisors of 21497931

1, 7, 9, 13, 63, 91, 117, 819, 26249, 183743, 236241, 341237, 1653687, 2388659, 3071133, 21497931

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21497930
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21497931 can be divided by 16 positive divisors. The sum of these divisors (counting 21497931) is 1, the average is 0.0625.

Base conversion 21497931

Base System Value
2 Binary 1010010000000100001001011
3 Ternary 1111110012121200
4 Quaternary 1102000201023
5 Quinary 21000413211
6 Senary 2044435243
8 Octal 122004113
10 Decimal 21497931
12 Duodecimal 7248b23
16 Hexadecimal 148084b
20 Vigesimal 6e74gb
36 Base36 csrwr

Cryptographic Hash Functions

md5 d6f7744e117986874b01a3b2ba28f261
sha1 53de87fbb4a607f718c3fee90d4dc67738d21957
sha256 e276cc5a30f342cb87b501cb1c7464a53386684908ed96d20cc4e163eb41b103
sha512 4509801ba5378dc26a1ebae949eb7713b7f8862257a290ea1fe691feea8ca83d92d286a8e4850af12689f0afc7d6eb8577ed7a6778af3e4cba975f13675873aa
ripemd-160 af220d2e100b7363c606b0a9a5b975b2810a0261

21497931 as geometric shapes

Circle

Radius = n
Diameter 42995862
Circumference 135075484.19396
Area 1.4519217194967E+15

Sphere

Radius = n
Volume 4.1617750590855E+22
Surface area 5.8076868779867E+15
Circumference 135075484.19396

Square

Length = n
Perimeter 85991724
Area 462161037280761
Diagonal 30402665.583161

Cube

Length = n
Surface area 2772966223684566
Volume 9.9355060903502E+21
Space diagonal 37235508.74961

Equilateral Triangle

Length = n
Perimeter 64493793
Area 2.0012159946225E+14
Altitude 18617754.374805

Triangular Pyramid

Length = n
Surface area 2.0012159946225E+14
Volume 1.1709106218345E+21
Height 10134221.861054