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14028869 = 80917341
BaseRepresentation
bin110101100001…
…000001000101
3222101201222202
4311201001011
512042410434
61220404245
7230146331
oct65410105
928351882
1014028869
117a12108
124846685
132ba260a
141c127c1
151371a7e
hexd61045

14028869 has 4 divisors (see below), whose sum is σ = 14047020. Its totient is φ = 14010720.

The previous prime is 14028823. The next prime is 14028913. The reversal of 14028869 is 96882041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12496225 + 1532644 = 3535^2 + 1238^2 .

It is a cyclic number.

It is not a de Polignac number, because 14028869 - 216 = 13963333 is a prime.

It is a super-2 number, since 2×140288692 = 393618330838322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14228869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7862 + ... + 9479.

It is an arithmetic number, because the mean of its divisors is an integer number (3511755).

Almost surely, 214028869 is an apocalyptic number.

It is an amenable number.

14028869 is a deficient number, since it is larger than the sum of its proper divisors (18151).

14028869 is an equidigital number, since it uses as much as digits as its factorization.

14028869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18150.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 14028869 is about 3745.5131824625. The cubic root of 14028869 is about 241.1797755283.

The spelling of 14028869 in words is "fourteen million, twenty-eight thousand, eight hundred sixty-nine".

Divisors: 1 809 17341 14028869