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14020434 = 232778913
BaseRepresentation
bin110101011110…
…111101010010
3222101022102100
4311132331102
512042123214
61220301230
7230112621
oct65367522
928338370
1014020434
117a0683a
124841816
132b9b81c
141c0d6b8
15136e309
hexd5ef52

14020434 has 12 divisors (see below), whose sum is σ = 30377646. Its totient is φ = 4673472.

The previous prime is 14020417. The next prime is 14020459. The reversal of 14020434 is 43402041.

It can be written as a sum of positive squares in only one way, i.e., 10791225 + 3229209 = 3285^2 + 1797^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 778913 = 14020434 / (1 + 4 + 0 + 2 + 0 + 4 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 389439 + ... + 389474.

Almost surely, 214020434 is an apocalyptic number.

14020434 is an abundant number, since it is smaller than the sum of its proper divisors (16357212).

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

14020434 is a wasteful number, since it uses less digits than its factorization.

14020434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778921 (or 778918 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 14020434 is about 3744.3869992296. The cubic root of 14020434 is about 241.1314285740.

Adding to 14020434 its reverse (43402041), we get a palindrome (57422475).

The spelling of 14020434 in words is "fourteen million, twenty thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 778913 1557826 2336739 4673478 7010217 14020434