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14190887 = 121311699
BaseRepresentation
bin110110001000…
…100100100111
3222200222020102
4312020210213
512113102022
61224054315
7231422564
oct66104447
928628212
1014190887
118012907
12490439b
132c2b299
141c5586b
1513a4a92
hexd88927

14190887 has 4 divisors (see below), whose sum is σ = 14203800. Its totient is φ = 14177976.

The previous prime is 14190877. The next prime is 14190893. The reversal of 14190887 is 78809141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78809141 = 367721433.

It is a cyclic number.

It is not a de Polignac number, because 14190887 - 26 = 14190823 is a prime.

It is a super-3 number, since 3×141908873 (a number of 22 digits) contains 333 as substring.

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 14190887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14190877) 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 3 ways as a sum of consecutive naturals, for example, 4637 + ... + 7062.

It is an arithmetic number, because the mean of its divisors is an integer number (3550950).

Almost surely, 214190887 is an apocalyptic number.

14190887 is a deficient number, since it is larger than the sum of its proper divisors (12913).

14190887 is a wasteful number, since it uses less digits than its factorization.

14190887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12912.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 14190887 is about 3767.0793726706. The cubic root of 14190887 is about 242.1046777529.

The spelling of 14190887 in words is "fourteen million, one hundred ninety thousand, eight hundred eighty-seven".

Divisors: 1 1213 11699 14190887