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14221231 = 176431301
BaseRepresentation
bin110110001111…
…111110101111
3222202111212021
4312033332233
512120034411
61224451011
7231610213
oct66177657
928674767
1014221231
118033692
124919a67
132c3c03b
141c62943
1513ada71
hexd8ffaf

14221231 has 8 divisors (see below), whose sum is σ = 15092784. Its totient is φ = 13353600.

The previous prime is 14221211. The next prime is 14221237. The reversal of 14221231 is 13212241.

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 14221231 - 29 = 14220719 is a prime.

It is a super-2 number, since 2×142212312 = 404486822310722, which contains 22 as substring.

It is a Duffinian number.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10281 + ... + 11581.

It is an arithmetic number, because the mean of its divisors is an integer number (1886598).

Almost surely, 214221231 is an apocalyptic number.

14221231 is a deficient number, since it is larger than the sum of its proper divisors (871553).

14221231 is a wasteful number, since it uses less digits than its factorization.

14221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961.

The product of its digits is 96, while the sum is 16.

The square root of 14221231 is about 3771.1047452968. The cubic root of 14221231 is about 242.2771169230.

Adding to 14221231 its reverse (13212241), we get a palindrome (27433472).

The spelling of 14221231 in words is "fourteen million, two hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 17 643 1301 10931 22117 836543 14221231