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14243405 = 511258971
BaseRepresentation
bin110110010101…
…011001001101
3222210122021112
4312111121031
512121242110
61225141405
7232031651
oct66253115
928718245
1014243405
118049310
12492a865
132c49167
141c6aa61
1513b5405
hexd9564d

14243405 has 8 divisors (see below), whose sum is σ = 18645984. Its totient is φ = 10358800.

The previous prime is 14243401. The next prime is 14243413. The reversal of 14243405 is 50434241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 14243405 - 22 = 14243401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14243401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129431 + ... + 129540.

It is an arithmetic number, because the mean of its divisors is an integer number (2330748).

Almost surely, 214243405 is an apocalyptic number.

It is an amenable number.

14243405 is a deficient number, since it is larger than the sum of its proper divisors (4402579).

14243405 is a wasteful number, since it uses less digits than its factorization.

14243405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258987.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 14243405 is about 3774.0435874536. The cubic root of 14243405 is about 242.4029724844.

Adding to 14243405 its reverse (50434241), we get a palindrome (64677646).

The spelling of 14243405 in words is "fourteen million, two hundred forty-three thousand, four hundred five".

Divisors: 1 5 11 55 258971 1294855 2848681 14243405