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28480682 = 214240341
BaseRepresentation
bin110110010100…
…1010010101010
31222120222011002
41230221102222
524242340212
62454235002
7464040026
oct154512252
958528132
1028480682
1115092a5a
129655a62
135b92599
143ad5386
152778ac2
hex1b294aa

28480682 has 4 divisors (see below), whose sum is σ = 42721026. Its totient is φ = 14240340.

The previous prime is 28480679. The next prime is 28480721. The reversal of 28480682 is 28608482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24790441 + 3690241 = 4979^2 + 1921^2 .

It is a super-2 number, since 2×284806822 = 1622298494370248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7120169 + ... + 7120172.

Almost surely, 228480682 is an apocalyptic number.

28480682 is a deficient number, since it is larger than the sum of its proper divisors (14240344).

28480682 is a wasteful number, since it uses less digits than its factorization.

28480682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14240343.

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 28480682 is about 5336.7295228445. The cubic root of 28480682 is about 305.3867064815.

The spelling of 28480682 in words is "twenty-eight million, four hundred eighty thousand, six hundred eighty-two".

Divisors: 1 2 14240341 28480682