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2748489 = 37911597
BaseRepresentation
bin1010011111000001001001
312011122012220
422133001021
51200422424
6134524253
732235042
oct12370111
95148186
102748489
111607a87
12b06689
13753033
145178c9
15394579
hex29f049

2748489 has 8 divisors (see below), whose sum is σ = 3711360. Its totient is φ = 1808976.

The previous prime is 2748469. The next prime is 2748497. The reversal of 2748489 is 9848472.

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

It is not a de Polignac number, because 2748489 - 25 = 2748457 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2748489 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2748489.

It is not an unprimeable number, because it can be changed into a prime (2748439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5562 + ... + 6035.

It is an arithmetic number, because the mean of its divisors is an integer number (463920).

22748489 is an apocalyptic number.

It is an amenable number.

2748489 is a deficient number, since it is larger than the sum of its proper divisors (962871).

2748489 is a wasteful number, since it uses less digits than its factorization.

2748489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11679.

The product of its digits is 129024, while the sum is 42.

The square root of 2748489 is about 1657.8567489382. The cubic root of 2748489 is about 140.0763019442.

It can be divided in two parts, 27 and 48489, that added together give a triangular number (48516 = T311).

The spelling of 2748489 in words is "two million, seven hundred forty-eight thousand, four hundred eighty-nine".

Divisors: 1 3 79 237 11597 34791 916163 2748489