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28829404 = 227207351
BaseRepresentation
bin110110111111…
…0011011011100
32000020200111201
41231332123130
524340020104
62505525244
7500021512
oct155763334
960220451
1028829404
1115300a5a
1297a3824
135c85226
143b864b2
1527e70a4
hex1b7e6dc

28829404 has 6 divisors (see below), whose sum is σ = 50451464. Its totient is φ = 14414700.

The previous prime is 28829357. The next prime is 28829407. The reversal of 28829404 is 40492882.

It is a super-3 number, since 3×288294043 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28829407) 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 as a sum of consecutive naturals, namely, 3603672 + ... + 3603679.

Almost surely, 228829404 is an apocalyptic number.

It is an amenable number.

28829404 is a deficient number, since it is larger than the sum of its proper divisors (21622060).

28829404 is a wasteful number, since it uses less digits than its factorization.

28829404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207355 (or 7207353 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 28829404 is about 5369.3020030540. The cubic root of 28829404 is about 306.6280548950.

It can be divided in two parts, 288 and 29404, that added together give a palindrome (29692).

The spelling of 28829404 in words is "twenty-eight million, eight hundred twenty-nine thousand, four hundred four".

Divisors: 1 2 4 7207351 14414702 28829404