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14128637 = 6123797
BaseRepresentation
bin110101111001…
…010111111101
3222120210211212
4311321113331
512104104022
61222454205
7231043235
oct65712775
928523755
1014128637
117a80066
124894365
132c08b53
141c3acc5
1513913e2
hexd795fd

14128637 has 6 divisors (see below), whose sum is σ = 14367834. Its totient is φ = 13893360.

The previous prime is 14128633. The next prime is 14128651. The reversal of 14128637 is 73682141.

It can be written as a sum of positive squares in 3 ways, for example, as 3818116 + 10310521 = 1954^2 + 3211^2 .

It is not a de Polignac number, because 14128637 - 22 = 14128633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14128633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1823 + ... + 5619.

It is an arithmetic number, because the mean of its divisors is an integer number (2394639).

Almost surely, 214128637 is an apocalyptic number.

It is an amenable number.

14128637 is a deficient number, since it is larger than the sum of its proper divisors (239197).

14128637 is an frugal number, since it uses more digits than its factorization.

14128637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919 (or 3858 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 14128637 is about 3758.8079227330. The cubic root of 14128637 is about 241.7501519462.

The spelling of 14128637 in words is "fourteen million, one hundred twenty-eight thousand, six hundred thirty-seven".

Divisors: 1 61 3721 3797 231617 14128637