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49405543 = 114491413
BaseRepresentation
bin1011110001110…
…1111001100111
310102222001122221
42330131321213
5100121434133
64522533211
71136640325
oct274357147
9112861587
1049405543
1125985130
1214667207
13a30a965
1467c0d15
15450da2d
hex2f1de67

49405543 has 4 divisors (see below), whose sum is σ = 53896968. Its totient is φ = 44914120.

The previous prime is 49405511. The next prime is 49405549. The reversal of 49405543 is 34550494.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49405543 - 25 = 49405511 is a prime.

It is a Duffinian number.

It is the 63-rd Perrin number.

It is a junction number, because it is equal to n+sod(n) for n = 49405499 and 49405508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49405549) by changing a digit.

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, 2245696 + ... + 2245717.

It is an arithmetic number, because the mean of its divisors is an integer number (13474242).

Almost surely, 249405543 is an apocalyptic number.

49405543 is a deficient number, since it is larger than the sum of its proper divisors (4491425).

49405543 is a wasteful number, since it uses less digits than its factorization.

49405543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491424.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 49405543 is about 7028.9076676252. The cubic root of 49405543 is about 366.9373264225.

The spelling of 49405543 in words is "forty-nine million, four hundred five thousand, five hundred forty-three".

Divisors: 1 11 4491413 49405543