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2538045 = 32556401
BaseRepresentation
bin1001101011101000111101
311202221112200
421223220331
51122204140
6130222113
730400356
oct11535075
94687480
102538045
111483964
12a24939
136ab303
144a0d2d
15352030
hex26ba3d

2538045 has 12 divisors (see below), whose sum is σ = 4399356. Its totient is φ = 1353600.

The previous prime is 2538031. The next prime is 2538059. The reversal of 2538045 is 5408352.

It is an interprime number because it is at equal distance from previous prime (2538031) and next prime (2538059).

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 1279161 = 1122^2 + 1131^2 .

It is not a de Polignac number, because 2538045 - 28 = 2537789 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 28156 + ... + 28245.

It is an arithmetic number, because the mean of its divisors is an integer number (366613).

22538045 is an apocalyptic number.

It is an amenable number.

2538045 is a deficient number, since it is larger than the sum of its proper divisors (1861311).

2538045 is a wasteful number, since it uses less digits than its factorization.

2538045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56412 (or 56409 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2538045 is about 1593.1242889367. The cubic root of 2538045 is about 136.4058844851.

It can be divided in two parts, 25380 and 45, that added together give a triangular number (25425 = T225).

The spelling of 2538045 in words is "two million, five hundred thirty-eight thousand, forty-five".

Divisors: 1 3 5 9 15 45 56401 169203 282005 507609 846015 2538045