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14446987 = 75119237
BaseRepresentation
bin110111000111…
…000110001011
31000011222112121
4313013012023
512144300422
61233352111
7233540332
oct67070613
930158477
1014446987
118178265
124a08637
132cbaa19
141cc0d19
1514058c7
hexdc718b

14446987 has 4 divisors (see below), whose sum is σ = 14466976. Its totient is φ = 14427000.

The previous prime is 14446981. The next prime is 14446997. The reversal of 14446987 is 78964441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78964441 = 82795483.

It is a cyclic number.

It is not a de Polignac number, because 14446987 - 211 = 14444939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14446981) 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 3 ways as a sum of consecutive naturals, for example, 8868 + ... + 10369.

It is an arithmetic number, because the mean of its divisors is an integer number (3616744).

Almost surely, 214446987 is an apocalyptic number.

14446987 is a deficient number, since it is larger than the sum of its proper divisors (19989).

14446987 is an equidigital number, since it uses as much as digits as its factorization.

14446987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19988.

The product of its digits is 193536, while the sum is 43.

The square root of 14446987 is about 3800.9192309230. The cubic root of 14446987 is about 243.5524077401.

The spelling of 14446987 in words is "fourteen million, four hundred forty-six thousand, nine hundred eighty-seven".

Divisors: 1 751 19237 14446987