Search a number
-
+
14395221 = 321599469
BaseRepresentation
bin110110111010…
…011101010101
31000002100112100
4312322131111
512141121341
61232312313
7233233401
oct66723525
930070470
1014395221
118142385
1249a2699
132ca02a9
141caa101
1513e53b6
hexdba755

14395221 has 6 divisors (see below), whose sum is σ = 20793110. Its totient is φ = 9596808.

The previous prime is 14395211. The next prime is 14395229. The reversal of 14395221 is 12259341.

14395221 is a `hidden beast` number, since 1 + 439 + 5 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8820900 + 5574321 = 2970^2 + 2361^2 .

It is not a de Polignac number, because 14395221 - 217 = 14264149 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14395229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 799726 + ... + 799743.

Almost surely, 214395221 is an apocalyptic number.

It is an amenable number.

14395221 is a deficient number, since it is larger than the sum of its proper divisors (6397889).

14395221 is a wasteful number, since it uses less digits than its factorization.

14395221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599475 (or 1599472 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 14395221 is about 3794.1034514098. The cubic root of 14395221 is about 243.2611631012.

The spelling of 14395221 in words is "fourteen million, three hundred ninety-five thousand, two hundred twenty-one".

Divisors: 1 3 9 1599469 4798407 14395221