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2542232405 = 517311532549
BaseRepresentation
bin1001011110000111…
…0110001101010101
320120011122210020202
42113201312031111
520201302414110
61100132510245
7116666422166
oct22741661525
96504583222
102542232405
111095029919
125ab47b385
133168c813b
141a18c576d
15ed2be0a5
hex97876355

2542232405 has 16 divisors (see below), whose sum is σ = 3072178800. Its totient is φ = 2019483648.

The previous prime is 2542232393. The next prime is 2542232419. The reversal of 2542232405 is 5042322452.

It can be written as a sum of positive squares in 8 ways, for example, as 757845841 + 1784386564 = 27529^2 + 42242^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542232405 - 218 = 2541970261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996071 + ... + 998619.

It is an arithmetic number, because the mean of its divisors is an integer number (192011175).

Almost surely, 22542232405 is an apocalyptic number.

It is an amenable number.

2542232405 is a deficient number, since it is larger than the sum of its proper divisors (529946395).

2542232405 is a wasteful number, since it uses less digits than its factorization.

2542232405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3880.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 2542232405 is about 50420.5553817092. Note that the first 3 decimals coincide. The cubic root of 2542232405 is about 1364.8085988880.

Adding to 2542232405 its reverse (5042322452), we get a palindrome (7584554857).

The spelling of 2542232405 in words is "two billion, five hundred forty-two million, two hundred thirty-two thousand, four hundred five".

Divisors: 1 5 173 865 1153 2549 5765 12745 199469 440977 997345 2204885 2938997 14694985 508446481 2542232405