21397908 (number)

21397908 is an even 8-digits composite number following 21397907 and preceding 21397909. In scientific notation, it is written as 2.1397908 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 24 positive divisors. There are 6048000 positive integers (up to 21397908) that are relatively prime to 21397908.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1397908 × 10^7
Engineering notation 2.1397908 × 10^6

Prime Factorization of 21397908

Prime Factorization 2 × 2 × 147 × 151 × 241

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10698954
Product of the distinct prime numbers

The prime factorization of 21397908 is 2 × 2 × 147 × 151 × 241. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 5, 64, 28, 444, 805, 3589, 9006, 71169, 18869, 424429, 368620, 6066600, 6636170, 96560613, 83420500, 812000824, 656592571, 934355878, 4838679624

Basic calculations (n = 21397908)

Multiplication

n×y
n×2 42795816
n×3 64193724
n×4 85591632
n×5 106989540

Division

n÷y
n÷2 10698954
n÷3 7132636
n÷3 5349477
n÷5 4279581.6

Exponentiation

ny
n2 457870466776464
n3 9.7974701239998E+21
n4 2.096453643461E+29
n5 4.4859722189043E+36

Nth Root

y√n
2√n 4625.7872843441
3√n 277.6240626989
4√n 68.01314052699
5√n 29.246524427922

Divisors of 21397908

1, 2, 4, 147, 151, 241, 294, 302, 482, 588, 604, 964, 22197, 35427, 36391, 44394, 70854, 72782, 88788, 141708, 145564, 5349477, 10698954, 21397908

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21397907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21397908 can be divided by 24 positive divisors. The sum of these divisors (counting 21397908) is 1, the average is 0.041666666666667.

Base conversion 21397908

Base System Value
2 Binary 1010001101000000110010100
3 Ternary 1111021010102010
4 Quaternary 1101220012110
5 Quinary 20434213113
6 Senary 2042344220
8 Octal 121500624
10 Decimal 21397908
12 Duodecimal 71bb070
16 Hexadecimal 1468194
20 Vigesimal 6deef8
36 Base36 cqmqc

Cryptographic Hash Functions

md5 e03f5037645c8cb633b5aa6fd492420f
sha1 dc6150b99239f187a85866dbd003992c9ec63fc9
sha256 e99879eedd186efbcc796f792f145d2841bc6b19fab3b1546118aaa799becf44
sha512 86ed6efde5a6fef444cae7774ca32e93a5c39d94caf6e70398ab45b155b1806324db6d9e2b37258a07a10a22b24d8af23ad6c0ce15f8724f1e856fe84b08117a
ripemd-160 5feb3e4bfeb89b042d6ec0764b76b33af7f77214

21397908 as geometric shapes

Circle

Radius = n
Diameter 42795816
Circumference 134447021.14998
Area 1.4384424947207E+15

Sphere

Radius = n
Volume 4.1039546887098E+22
Surface area 5.7537699788827E+15
Circumference 134447021.14998

Square

Length = n
Perimeter 85591632
Area 457870466776464
Diagonal 30261211.700012

Cube

Length = n
Surface area 2747222800658784
Volume 9.7974701239998E+21
Space diagonal 37062263.831685

Equilateral Triangle

Length = n
Perimeter 64193724
Area 1.9826372793553E+14
Altitude 18531131.915842

Triangular Pyramid

Length = n
Surface area 1.9826372793553E+14
Volume 1.1546429271921E+21
Height 10087070.566671