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14221207 = 7111314207
BaseRepresentation
bin110110001111…
…111110010111
3222202111211101
4312033332113
512120034312
61224450531
7231610150
oct66177627
928674741
1014221207
118033670
124919a47
132c3c020
141c62927
1513ada57
hexd8ff97

14221207 has 16 divisors (see below), whose sum is σ = 19095552. Its totient is φ = 10228320.

The previous prime is 14221171. The next prime is 14221211. The reversal of 14221207 is 70212241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 14221207 - 215 = 14188439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221237) 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 15 ways as a sum of consecutive naturals, for example, 6103 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (1193472).

Almost surely, 214221207 is an apocalyptic number.

14221207 is a deficient number, since it is larger than the sum of its proper divisors (4874345).

14221207 is a wasteful number, since it uses less digits than its factorization.

14221207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14238.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 14221207 is about 3771.1015632040. The cubic root of 14221207 is about 242.2769806325.

Adding to 14221207 its reverse (70212241), we get a palindrome (84433448).

The spelling of 14221207 in words is "fourteen million, two hundred twenty-one thousand, two hundred seven".

Divisors: 1 7 11 13 77 91 143 1001 14207 99449 156277 184691 1093939 1292837 2031601 14221207