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49830545 = 523342773
BaseRepresentation
bin1011111000010…
…1101010010001
310110202122122202
42332011222101
5100224034140
64540012545
71143360362
oct276055221
9113678582
1049830545
1126145476
1214831155
13a42923b
146891b69
154594915
hex2f85a91

49830545 has 8 divisors (see below), whose sum is σ = 60054696. Its totient is φ = 39692416.

The previous prime is 49830533. The next prime is 49830551. The reversal of 49830545 is 54503894.

It is a happy number.

49830545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 283024 + 49547521 = 532^2 + 7039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49830545 - 212 = 49826449 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49830499 and 49830508.

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 7 ways as a sum of consecutive naturals, for example, 20222 + ... + 22551.

It is an arithmetic number, because the mean of its divisors is an integer number (7506837).

Almost surely, 249830545 is an apocalyptic number.

It is an amenable number.

49830545 is a deficient number, since it is larger than the sum of its proper divisors (10224151).

49830545 is a wasteful number, since it uses less digits than its factorization.

49830545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43011.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 49830545 is about 7059.0753643802. The cubic root of 49830545 is about 367.9864937742.

The spelling of 49830545 in words is "forty-nine million, eight hundred thirty thousand, five hundred forty-five".

Divisors: 1 5 233 1165 42773 213865 9966109 49830545