21490428 (number)

21490428 is an even 8-digits composite number following 21490427 and preceding 21490429. In scientific notation, it is written as 2.1490428 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors. There are 7163472 positive integers (up to 21490428) that are relatively prime to 21490428.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand four hundred twenty-eight

Notation

Scientific notation 2.1490428 × 10^7
Engineering notation 2.1490428 × 10^6

Prime Factorization of 21490428

Prime Factorization 2 × 2 × 3 × 1790869

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10745214
Product of the distinct prime numbers

The prime factorization of 21490428 is 2 × 2 × 3 × 1790869. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 8, 78, 43, 447, 967, 4071, 6692, 27935, 21408, 943366, 694786, 1590392, 3210585, 26453223, 43553672, 874966509, 149119417, 4776708531, 4241862909

Basic calculations (n = 21490428)

Multiplication

n×y
n×2 42980856
n×3 64471284
n×4 85961712
n×5 107452140

Division

n÷y
n÷2 10745214
n÷3 7163476
n÷3 5372607
n÷5 4298085.6

Exponentiation

ny
n2 461838495623184
n3 9.9251069378184E+21
n4 2.1329479603949E+29
n5 4.5837964570613E+36

Nth Root

y√n
2√n 4635.7769575337
3√n 278.02361650895
4√n 68.086540208279
5√n 29.271771949035

Divisors of 21490428

1, 2, 3, 4, 6, 12, 1790869, 3581738, 5372607, 7163476, 10745214, 21490428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21490427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490428 can be divided by 12 positive divisors. The sum of these divisors (counting 21490428) is 1, the average is 0.083333333333333.

Base conversion 21490428

Base System Value
2 Binary 1010001111110101011111100
3 Ternary 1111102211022210
4 Quaternary 1101332223330
5 Quinary 21000143203
6 Senary 2044340420
8 Octal 121765374
10 Decimal 21490428
12 Duodecimal 7244710
16 Hexadecimal 147eafc
20 Vigesimal 6e6618
36 Base36 csm4c

Cryptographic Hash Functions

md5 54e68b5397d7fb35c0c12254c8b489eb
sha1 6c5d5fd146a275c0a5d6aaaed6e3afeb65f99438
sha256 67703d85b0c5001d04569ae2db60540a9928c33140fd842bc3539b37f8119794
sha512 ada8965d165874f57e4a93937788ca87b1a975f1ad2432962182ef83a7ca76c093d4b56bc03eb81e71d87183878bcbbdee2e33cfc3b65bd2d66fea0d047965cb
ripemd-160 8fbbb99d3fe3df3de43e2dd35adf5f6cea03c053

21490428 as geometric shapes

Circle

Radius = n
Diameter 42980856
Circumference 135028341.4546
Area 1.4509084249948E+15

Sphere

Radius = n
Volume 4.1574190722591E+22
Surface area 5.803633699979E+15
Circumference 135028341.4546

Square

Length = n
Perimeter 85961712
Area 461838495623184
Diagonal 30392054.738803

Cube

Length = n
Surface area 2771030973739104
Volume 9.9251069378184E+21
Space diagonal 37222513.172401

Equilateral Triangle

Length = n
Perimeter 64471284
Area 1.9998193482763E+14
Altitude 18611256.5862

Triangular Pyramid

Length = n
Surface area 1.9998193482763E+14
Volume 1.1696850699555E+21
Height 10130684.912934