21031640 (number)

21031640 is an even 8-digits composite number following 21031639 and preceding 21031641. In scientific notation, it is written as 2.1031640 × 10^7. The sum of its digits is 17. It has a total of 7 prime factors and 64 positive divisors. There are 6975360 positive integers (up to 21031640) that are relatively prime to 21031640.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand six hundred forty

Notation

Scientific notation 2.1031640 × 10^7
Engineering notation 2.1031640 × 10^6

Prime Factorization of 21031640

Prime Factorization 2 × 2 × 2 × 5 × 7 × 31 × 2423

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5257910
Product of the distinct prime numbers

The prime factorization of 21031640 is 2 × 2 × 2 × 5 × 7 × 31 × 2423. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 7, 55, 35, 230, 86, 7680, 5525, 51098, 89837, 880741, 942232, 5511024, 5004284, 72874887, 7814551, 495268164, 961074789, 2390407577, 5254979504

Basic calculations (n = 21031640)

Multiplication

n×y
n×2 42063280
n×3 63094920
n×4 84126560
n×5 105158200

Division

n÷y
n÷2 10515820
n÷3 7010546.6666667
n÷3 5257910
n÷5 4206328

Exponentiation

ny
n2 442329881089600
n3 9.3029228203193E+21
n4 1.9565572370474E+29
n5 4.1149607448976E+36

Nth Root

y√n
2√n 4586.0266026267
3√n 276.03090741182
4√n 67.720208229351
5√n 29.145709228791

Divisors of 21031640

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 2423, 4340, 4846, 8680, 9692, 12115, 16961, 19384, 24230, 33922, 48460, 67844, 75113, 84805, 96920, 135688, 150226, 169610, 300452, 339220, 375565, 525791, 600904, 678440, 751130, 1051582, 1502260, 2103164, 2628955, 3004520, 4206328, 5257910, 10515820, 21031640

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031640 can be divided by 64 positive divisors. The sum of these divisors (counting 21031640) is 1, the average is 0.015625.

Base conversion 21031640

Base System Value
2 Binary 1010000001110101011011000
3 Ternary 1110120111222122
4 Quaternary 1100032223120
5 Quinary 20341003030
6 Senary 2030440412
8 Octal 120165330
10 Decimal 21031640
12 Duodecimal 7063108
16 Hexadecimal 140ead8
20 Vigesimal 6b8j20
36 Base36 cis48

Cryptographic Hash Functions

md5 ddd4800783e2c59fc18a0529d9ce81a5
sha1 f407cc6e17a0903007435f8f66f9f88b9a473f02
sha256 73e05f7745764a5fbb55e0e0fe0bc455d1e3636dd839ce7bec5e649dd766730b
sha512 7c60a0b0fbe18fd648d1a1c2fe57af71ee86df413d362cde6df85c8fbd0a914a07490df4729efaf647070996bf4e4839d8cf4d1b43f533f282f439f2081c524b
ripemd-160 26f168430a197bb58beb28ed19f1c36ad3fe98e3

21031640 as geometric shapes

Circle

Radius = n
Diameter 42063280
Circumference 132145691.43389
Area 1.3896203048943E+15

Sphere

Radius = n
Volume 3.8967991985637E+22
Surface area 5.5584812195773E+15
Circumference 132145691.43389

Square

Length = n
Perimeter 84126560
Area 442329881089600
Diagonal 29743230.526948

Cube

Length = n
Surface area 2653979286537600
Volume 9.3029228203193E+21
Space diagonal 36427869.046498

Equilateral Triangle

Length = n
Perimeter 63094920
Area 1.9153445693827E+14
Altitude 18213934.523249

Triangular Pyramid

Length = n
Surface area 1.9153445693827E+14
Volume 1.0963599685171E+21
Height 9914410.1756495