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28576054 = 2131099079
BaseRepresentation
bin110110100000…
…0100100110110
31222202210222101
41231000210312
524303413204
62500252314
7464615053
oct155004466
958683871
1028576054
1115148681
1296a109a
135bc6b10
143b1c02a
152796ea4
hex1b40936

28576054 has 8 divisors (see below), whose sum is σ = 46161360. Its totient is φ = 13188936.

The previous prime is 28576043. The next prime is 28576061. The reversal of 28576054 is 45067582.

It is a happy number.

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

It is a super-3 number, since 3×285760543 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549514 + ... + 549565.

It is an arithmetic number, because the mean of its divisors is an integer number (5770170).

Almost surely, 228576054 is an apocalyptic number.

28576054 is a deficient number, since it is larger than the sum of its proper divisors (17585306).

28576054 is a wasteful number, since it uses less digits than its factorization.

28576054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099094.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 28576054 is about 5345.6574899632. The cubic root of 28576054 is about 305.7272050116.

It can be divided in two parts, 2857 and 6054, that added together give a triangular number (8911 = T133).

The spelling of 28576054 in words is "twenty-eight million, five hundred seventy-six thousand, fifty-four".

Divisors: 1 2 13 26 1099079 2198158 14288027 28576054