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14040144 = 243297501
BaseRepresentation
bin110101100011…
…110001010000
3222102022110100
4311203301100
512043241034
61220532400
7230224236
oct65436120
928368410
1014040144
117a1a628
124851100
132ba77a1
141c16956
151375099
hexd63c50

14040144 has 30 divisors (see below), whose sum is σ = 39293306. Its totient is φ = 4680000.

The previous prime is 14040133. The next prime is 14040149. The reversal of 14040144 is 44104041.

It can be written as a sum of positive squares in only one way, i.e., 12873744 + 1166400 = 3588^2 + 1080^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14040149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48607 + ... + 48894.

Almost surely, 214040144 is an apocalyptic number.

It is an amenable number.

14040144 is an abundant number, since it is smaller than the sum of its proper divisors (25253162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14040144 is a wasteful number, since it uses less digits than its factorization.

14040144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97515 (or 97506 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 14040144 is about 3747.0180143682. The cubic root of 14040144 is about 241.2443702768.

Adding to 14040144 its reverse (44104041), we get a palindrome (58144185).

The spelling of 14040144 in words is "fourteen million, forty thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 97501 195002 292503 390004 585006 780008 877509 1170012 1560016 1755018 2340024 3510036 4680048 7020072 14040144