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2828987 = 71723773
BaseRepresentation
bin1010110010101010111011
312022201122022
422302222323
51211011422
6140345055
733021530
oct12625273
95281568
102828987
111662507
12b4518b
13780875
14538d87
153ad342
hex2b2abb

2828987 has 8 divisors (see below), whose sum is σ = 3423456. Its totient is φ = 2282112.

The previous prime is 2828971. The next prime is 2828989. The reversal of 2828987 is 7898282.

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

It is not a de Polignac number, because 2828987 - 24 = 2828971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2828989) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11768 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (427932).

22828987 is an apocalyptic number.

2828987 is a deficient number, since it is larger than the sum of its proper divisors (594469).

2828987 is a wasteful number, since it uses less digits than its factorization.

2828987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23797.

The product of its digits is 129024, while the sum is 44.

The square root of 2828987 is about 1681.9592741800. The cubic root of 2828987 is about 141.4306868759.

The spelling of 2828987 in words is "two million, eight hundred twenty-eight thousand, nine hundred eighty-seven".

Divisors: 1 7 17 119 23773 166411 404141 2828987