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14478028 = 223619507
BaseRepresentation
bin110111001110…
…101011001100
31000020120010021
4313032223030
512201244103
61234151524
7234026665
oct67165314
930216107
1014478028
118199614
124a225a4
132ccbba6
141ccc36c
15140ebbd
hexdceacc

14478028 has 6 divisors (see below), whose sum is σ = 25336556. Its totient is φ = 7239012.

The previous prime is 14478011. The next prime is 14478029. The reversal of 14478028 is 82087441.

It is a super-2 number, since 2×144780282 = 419226589537568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 14477984 and 14478002.

It is not an unprimeable number, because it can be changed into a prime (14478029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809750 + ... + 1809757.

Almost surely, 214478028 is an apocalyptic number.

It is an amenable number.

14478028 is a deficient number, since it is larger than the sum of its proper divisors (10858528).

14478028 is a wasteful number, since it uses less digits than its factorization.

14478028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619511 (or 3619509 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 14478028 is about 3805.0003942181. Note that the first 3 decimals coincide. The cubic root of 14478028 is about 243.7267163383.

The spelling of 14478028 in words is "fourteen million, four hundred seventy-eight thousand, twenty-eight".

Divisors: 1 2 4 3619507 7239014 14478028