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4728987 = 321812903
BaseRepresentation
bin10010000010100010011011
322220020221200
4102002202123
52202311422
6245205243
755124064
oct22024233
98806850
104728987
11273aa5a
121700823
13c97623
148b156b
156362ac
hex48289b

4728987 has 12 divisors (see below), whose sum is σ = 6870864. Its totient is φ = 3134160.

The previous prime is 4728973. The next prime is 4728989. The reversal of 4728987 is 7898274.

It is not a de Polignac number, because 4728987 - 212 = 4724891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4728989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178 + ... + 3080.

It is an arithmetic number, because the mean of its divisors is an integer number (572572).

Almost surely, 24728987 is an apocalyptic number.

4728987 is a deficient number, since it is larger than the sum of its proper divisors (2141877).

4728987 is a wasteful number, since it uses less digits than its factorization.

4728987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3087 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 4728987 is about 2174.6234156745. The cubic root of 4728987 is about 167.8505260622.

The spelling of 4728987 in words is "four million, seven hundred twenty-eight thousand, nine hundred eighty-seven".

Divisors: 1 3 9 181 543 1629 2903 8709 26127 525443 1576329 4728987