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49242973 = 1331711721
BaseRepresentation
bin1011101111011…
…0001101011101
310102122210122211
42323312031131
5100101233343
64515240421
71135362343
oct273661535
9112583584
1049242973
1125883a7a
12145a9111
13a281970
14677b993
1544ca79d
hex2ef635d

49242973 has 16 divisors (see below), whose sum is σ = 55544832. Its totient is φ = 43344000.

The previous prime is 49242971. The next prime is 49242979. The reversal of 49242973 is 37924294.

It is a cyclic number.

It is not a de Polignac number, because 49242973 - 21 = 49242971 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 (49242971) 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 15 ways as a sum of consecutive naturals, for example, 27753 + ... + 29473.

It is an arithmetic number, because the mean of its divisors is an integer number (3471552).

Almost surely, 249242973 is an apocalyptic number.

It is an amenable number.

49242973 is a deficient number, since it is larger than the sum of its proper divisors (6301859).

49242973 is a wasteful number, since it uses less digits than its factorization.

49242973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its digits is 108864, while the sum is 40.

The square root of 49242973 is about 7017.3337529292. Note that the first 3 decimals coincide. The cubic root of 49242973 is about 366.5344124494.

The spelling of 49242973 in words is "forty-nine million, two hundred forty-two thousand, nine hundred seventy-three".

Divisors: 1 13 31 71 403 923 1721 2201 22373 28613 53351 122191 693563 1588483 3787921 49242973