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14272405 = 57407783
BaseRepresentation
bin110110011100…
…011110010101
3222212010001121
4312130132111
512123204110
61225523541
7232212340
oct66343625
928763047
1014272405
118069084
1249435b1
132c59414
141c77457
1513bdcda
hexd9c795

14272405 has 8 divisors (see below), whose sum is σ = 19573632. Its totient is φ = 9786768.

The previous prime is 14272403. The next prime is 14272429. The reversal of 14272405 is 50427241.

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

It is a cyclic number.

It is not a de Polignac number, because 14272405 - 21 = 14272403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14272405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14272403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203857 + ... + 203926.

It is an arithmetic number, because the mean of its divisors is an integer number (2446704).

Almost surely, 214272405 is an apocalyptic number.

It is an amenable number.

14272405 is a deficient number, since it is larger than the sum of its proper divisors (5301227).

14272405 is an equidigital number, since it uses as much as digits as its factorization.

14272405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407795.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 14272405 is about 3777.8836668166. The cubic root of 14272405 is about 242.5673742012.

Adding to 14272405 its reverse (50427241), we get a palindrome (64699646).

The spelling of 14272405 in words is "fourteen million, two hundred seventy-two thousand, four hundred five".

Divisors: 1 5 7 35 407783 2038915 2854481 14272405