12905438 (number)

12905438 is an even 8-digits composite number following 12905437 and preceding 12905439. In scientific notation, it is written as 1.2905438 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 32 positive divisors. There are 4881888 positive integers (up to 12905438) that are relatively prime to 12905438.

Interesting facts

Basic properties

Name

Name twelve million nine hundred five thousand four hundred thirty-eight

Notation

Scientific notation 1.2905438 × 10^7
Engineering notation 1.2905438 × 10^6

Prime Factorization of 12905438

Prime Factorization 2 × 7 × 13 × 23 × 3083

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 12905438
Product of the distinct prime numbers

The prime factorization of 12905438 is 2 × 7 × 13 × 23 × 3083. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 2, 77, 85, 532, 372, 5004, 7233, 32445, 68689, 354404, 426818, 1918148, 2186422, 22569748, 80743544, 295946321, 804322309, 993829483, 3634826928

Basic calculations (n = 12905438)

Multiplication

n×y
n×2 25810876
n×3 38716314
n×4 51621752
n×5 64527190

Division

n÷y
n÷2 6452719
n÷3 4301812.6666667
n÷3 3226359.5
n÷5 2581087.6

Exponentiation

ny
n2 166550329971844
n3 2.1494049573312E+21
n4 2.773901241373E+28
n5 3.5798410488662E+35

Nth Root

y√n
2√n 3592.4139516487
3√n 234.56196052301
4√n 59.936749591955
5√n 26.433492626518

Divisors of 12905438

1, 2, 7, 13, 14, 23, 26, 46, 91, 161, 182, 299, 322, 598, 2093, 3083, 4186, 6166, 21581, 40079, 43162, 70909, 80158, 141818, 280553, 496363, 561106, 921817, 992726, 1843634, 6452719, 12905438

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12905437
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12905438 can be divided by 32 positive divisors. The sum of these divisors (counting 12905438) is 1, the average is 0.03125.

Base conversion 12905438

Base System Value
2 Binary 110001001110101111011110
3 Ternary 220021122221012
4 Quaternary 301032233132
5 Quinary 11300433223
6 Senary 1140335222
8 Octal 61165736
10 Decimal 12905438
12 Duodecimal 43a4512
16 Hexadecimal c4ebde
20 Vigesimal 40d3bi
36 Base36 7olwe

Cryptographic Hash Functions

md5 b199fc58ccd7662a46b0d0762917a497
sha1 a2497f1edb75bc408335f2861c4d582e4d49bc5a
sha256 86a7c46dd923432473610a8f10af1269e53230b1c654c59f7be8e9ba88559994
sha512 7083e36500b0c9659f648aad4ef1f0196e0d566e8ea1ac4586994b9fd0218bc2c8ea083d4cb79b82a1afe4fcce0f234eca6e1bd09847f7551a86b75127aa2f27
ripemd-160 c28c21abf5e04d7b84a239d1959b6e3fc0d4e4db

12905438 as geometric shapes

Circle

Radius = n
Diameter 25810876
Circumference 81087258.424317
Area 5.232332930925E+14

Sphere

Radius = n
Volume 9.0034064313881E+21
Surface area 2.09293317237E+15
Circumference 81087258.424317

Square

Length = n
Perimeter 51621752
Area 166550329971844
Diagonal 18251045.447965

Cube

Length = n
Surface area 999301979831064
Volume 2.1494049573312E+21
Space diagonal 22352874.30993

Equilateral Triangle

Length = n
Perimeter 38716314
Area 72118408382149
Altitude 11176437.154965

Triangular Pyramid

Length = n
Surface area 72118408382149
Volume 2.5330980347414E+20
Height 6083681.8159884