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2801244 = 223233437
BaseRepresentation
bin1010101011111001011100
312021022120210
422223321130
51204114434
6140012420
732544615
oct12537134
95238523
102801244
111643686
12b31110
13771054
1452cc0c
153a4ee9
hex2abe5c

2801244 has 12 divisors (see below), whose sum is σ = 6536264. Its totient is φ = 933744.

The previous prime is 2801237. The next prime is 2801251. The reversal of 2801244 is 4421082.

It is an interprime number because it is at equal distance from previous prime (2801237) and next prime (2801251).

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2801244.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 116707 + ... + 116730.

22801244 is an apocalyptic number.

It is an amenable number.

2801244 is an abundant number, since it is smaller than the sum of its proper divisors (3735020).

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

2801244 is a wasteful number, since it uses less digits than its factorization.

2801244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233444 (or 233442 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2801244 is about 1673.6917278878. The cubic root of 2801244 is about 140.9668449785.

The spelling of 2801244 in words is "two million, eight hundred one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 233437 466874 700311 933748 1400622 2801244