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14868021 = 37314449
BaseRepresentation
bin111000101101…
…111000110101
31000222101002110
4320231320311
512301234041
61250401233
7240243000
oct70557065
930871073
1014868021
118435623
124b90219
13310755c
141d90537
15148a516
hexe2de35

14868021 has 16 divisors (see below), whose sum is σ = 23120000. Its totient is φ = 8495424.

The previous prime is 14868019. The next prime is 14868023. The reversal of 14868021 is 12086841.

It is an interprime number because it is at equal distance from previous prime (14868019) and next prime (14868023).

It is not a de Polignac number, because 14868021 - 21 = 14868019 is a prime.

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 14868021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14868023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6196 + ... + 8253.

It is an arithmetic number, because the mean of its divisors is an integer number (1445000).

Almost surely, 214868021 is an apocalyptic number.

It is an amenable number.

14868021 is a deficient number, since it is larger than the sum of its proper divisors (8251979).

14868021 is an equidigital number, since it uses as much as digits as its factorization.

14868021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14473 (or 14459 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 14868021 is about 3855.9072862298. The cubic root of 14868021 is about 245.8957685205.

The spelling of 14868021 in words is "fourteen million, eight hundred sixty-eight thousand, twenty-one".

Divisors: 1 3 7 21 49 147 343 1029 14449 43347 101143 303429 708001 2124003 4956007 14868021