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2540575 = 52151673
BaseRepresentation
bin1001101100010000011111
311210002000101
421230100133
51122244300
6130241531
730410632
oct11542037
94702011
102540575
111485854
12a262a7
136ac4cb
144a1c19
15352b6a
hex26c41f

2540575 has 12 divisors (see below), whose sum is σ = 3175888. Its totient is φ = 2016000.

The previous prime is 2540567. The next prime is 2540581. The reversal of 2540575 is 5750452.

2540575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2540575 - 23 = 2540567 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

2540575 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3439 + ... + 4111.

22540575 is an apocalyptic number.

2540575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2540575 is a deficient number, since it is larger than the sum of its proper divisors (635313).

2540575 is a wasteful number, since it uses less digits than its factorization.

2540575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 2540575 is about 1593.9181283868. The cubic root of 2540575 is about 136.4511939366.

The spelling of 2540575 in words is "two million, five hundred forty thousand, five hundred seventy-five".

Divisors: 1 5 25 151 673 755 3365 3775 16825 101623 508115 2540575