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14212881 = 33737211
BaseRepresentation
bin110110001101…
…111100010001
3222202002102000
4312031330101
512114303011
61224344213
7231543654
oct66157421
928662360
1014212881
118028391
124915069
132c382b7
141c5d89b
1513ab356
hexd8df11

14212881 has 16 divisors (see below), whose sum is σ = 21347520. Its totient is φ = 9344160.

The previous prime is 14212853. The next prime is 14212903. The reversal of 14212881 is 18821241.

It is not a de Polignac number, because 14212881 - 29 = 14212369 is a prime.

It is a super-2 number, since 2×142128812 = 404011972640322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14212831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1635 + ... + 5576.

It is an arithmetic number, because the mean of its divisors is an integer number (1334220).

Almost surely, 214212881 is an apocalyptic number.

It is an amenable number.

14212881 is a deficient number, since it is larger than the sum of its proper divisors (7134639).

14212881 is an equidigital number, since it uses as much as digits as its factorization.

14212881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293 (or 7287 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 14212881 is about 3769.9974801053. The cubic root of 14212881 is about 242.2296899458.

The spelling of 14212881 in words is "fourteen million, two hundred twelve thousand, eight hundred eighty-one".

Divisors: 1 3 9 27 73 219 657 1971 7211 21633 64899 194697 526403 1579209 4737627 14212881