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14188140 = 2232578823
BaseRepresentation
bin110110000111…
…111001101100
3222200211110200
4312013321230
512113010030
61224033500
7231411561
oct66077154
928624420
1014188140
11801083a
124902890
132c29c65
141c54868
1513a3d60
hexd87e6c

14188140 has 36 divisors (see below), whose sum is σ = 43037904. Its totient is φ = 3783456.

The previous prime is 14188127. The next prime is 14188157. The reversal of 14188140 is 4188141.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39232 + ... + 39591.

Almost surely, 214188140 is an apocalyptic number.

14188140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14188140 is an abundant number, since it is smaller than the sum of its proper divisors (28849764).

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

14188140 is a wasteful number, since it uses less digits than its factorization.

14188140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78838 (or 78833 counting only the distinct ones).

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

The square root of 14188140 is about 3766.7147489556. The cubic root of 14188140 is about 242.0890549458.

Subtracting from 14188140 its reverse (4188141), we obtain a palindrome (9999999).

The spelling of 14188140 in words is "fourteen million, one hundred eighty-eight thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 78823 157646 236469 315292 394115 472938 709407 788230 945876 1182345 1418814 1576460 2364690 2837628 3547035 4729380 7094070 14188140