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28904110 = 252890411
BaseRepresentation
bin110111001000…
…0101010101110
32000101110222121
41232100222232
524344412420
62511303154
7500452354
oct156205256
960343877
1028904110
11153520a4
12981aaba
135cb0231
143ba57d4
15280e2aa
hex1b90aae

28904110 has 8 divisors (see below), whose sum is σ = 52027416. Its totient is φ = 11561640.

The previous prime is 28904101. The next prime is 28904129. The reversal of 28904110 is 1140982.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445196 + ... + 1445215.

It is an arithmetic number, because the mean of its divisors is an integer number (6503427).

Almost surely, 228904110 is an apocalyptic number.

28904110 is a deficient number, since it is larger than the sum of its proper divisors (23123306).

28904110 is a wasteful number, since it uses less digits than its factorization.

28904110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890418.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 28904110 is about 5376.2542722606. The cubic root of 28904110 is about 306.8926828370.

The spelling of 28904110 in words is "twenty-eight million, nine hundred four thousand, one hundred ten".

Divisors: 1 2 5 10 2890411 5780822 14452055 28904110