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49985949 = 3131281691
BaseRepresentation
bin1011111010101…
…1100110011101
310111001112211110
42332223212131
5100244022244
64543212233
71144605426
oct276534635
9114045743
1049985949
1126241202
12148a7079
13a481bb0
1468d264d
1545c59b9
hex2fab99d

49985949 has 8 divisors (see below), whose sum is σ = 71774752. Its totient is φ = 30760560.

The previous prime is 49985893. The next prime is 49985989. The reversal of 49985949 is 94958994.

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

It is not a de Polignac number, because 49985949 - 213 = 49977757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49985989) 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 7 ways as a sum of consecutive naturals, for example, 640807 + ... + 640884.

It is an arithmetic number, because the mean of its divisors is an integer number (8971844).

Almost surely, 249985949 is an apocalyptic number.

It is an amenable number.

49985949 is a deficient number, since it is larger than the sum of its proper divisors (21788803).

49985949 is a wasteful number, since it uses less digits than its factorization.

49985949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281707.

The product of its digits is 4199040, while the sum is 57.

The square root of 49985949 is about 7070.0741863152. The cubic root of 49985949 is about 368.3686370799.

The spelling of 49985949 in words is "forty-nine million, nine hundred eighty-five thousand, nine hundred forty-nine".

Divisors: 1 3 13 39 1281691 3845073 16661983 49985949