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14412221 = 47306643
BaseRepresentation
bin110110111110…
…100110111101
31000010012211222
4312332212331
512142142341
61232523125
7233334065
oct66764675
930105758
1014412221
11815412a
1249b04a5
132ca7c55
141cb23a5
1513ea44b
hexdbe9bd

14412221 has 4 divisors (see below), whose sum is σ = 14718912. Its totient is φ = 14105532.

The previous prime is 14412173. The next prime is 14412239. The reversal of 14412221 is 12221441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14412221 - 26 = 14412157 is a prime.

It is a super-2 number, since 2×144122212 = 415424228305682, which contains 22 as substring.

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 14412221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14412271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153275 + ... + 153368.

It is an arithmetic number, because the mean of its divisors is an integer number (3679728).

Almost surely, 214412221 is an apocalyptic number.

It is an amenable number.

14412221 is a deficient number, since it is larger than the sum of its proper divisors (306691).

14412221 is an equidigital number, since it uses as much as digits as its factorization.

14412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306690.

The product of its digits is 128, while the sum is 17.

The square root of 14412221 is about 3796.3431088351. The cubic root of 14412221 is about 243.3568849830.

Adding to 14412221 its reverse (12221441), we get a palindrome (26633662).

The spelling of 14412221 in words is "fourteen million, four hundred twelve thousand, two hundred twenty-one".

Divisors: 1 47 306643 14412221