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49561340 = 2252478067
BaseRepresentation
bin1011110100001…
…1111011111100
310110020222101012
42331003323330
5100141430330
64530134352
71141156463
oct275037374
9113228335
1049561340
1125a81194
12147213b8
13a36384a
1468219da
15453ec95
hex2f43efc

49561340 has 12 divisors (see below), whose sum is σ = 104078856. Its totient is φ = 19824528.

The previous prime is 49561331. The next prime is 49561381. The reversal of 49561340 is 4316594.

It is a junction number, because it is equal to n+sod(n) for n = 49561297 and 49561306.

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 3 ways as a sum of consecutive naturals, for example, 1239014 + ... + 1239053.

It is an arithmetic number, because the mean of its divisors is an integer number (8673238).

Almost surely, 249561340 is an apocalyptic number.

It is an amenable number.

49561340 is an abundant number, since it is smaller than the sum of its proper divisors (54517516).

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

49561340 is a wasteful number, since it uses less digits than its factorization.

49561340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478076 (or 2478074 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 49561340 is about 7039.9815340667. The cubic root of 49561340 is about 367.3226256198.

The spelling of 49561340 in words is "forty-nine million, five hundred sixty-one thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 2478067 4956134 9912268 12390335 24780670 49561340