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28747482 = 234791247
BaseRepresentation
bin110110110101…
…0011011011010
32000002112010120
41231222123122
524324404412
62504054110
7466230621
oct155523332
960075116
1028747482
1115255455
129764336
135c56b5a
143b646b8
1527ccb8c
hex1b6a6da

28747482 has 8 divisors (see below), whose sum is σ = 57494976. Its totient is φ = 9582492.

The previous prime is 28747471. The next prime is 28747487. The reversal of 28747482 is 28474782.

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

28747482 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28747487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2395618 + ... + 2395629.

It is an arithmetic number, because the mean of its divisors is an integer number (7186872).

Almost surely, 228747482 is an apocalyptic number.

28747482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28747482 is a wasteful number, since it uses less digits than its factorization.

28747482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791252.

The product of its digits is 200704, while the sum is 42.

The square root of 28747482 is about 5361.6678375297. The cubic root of 28747482 is about 306.3373399647.

The spelling of 28747482 in words is "twenty-eight million, seven hundred forty-seven thousand, four hundred eighty-two".

Divisors: 1 2 3 6 4791247 9582494 14373741 28747482