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49891386 = 238315231
BaseRepresentation
bin1011111001010…
…0100000111010
310110212202010010
42332110200322
5100233011021
64541202350
71144032636
oct276244072
9113782103
1049891386
1126187156
12148603b6
13a44ab3c
1468a9dc6
1545a7976
hex2f9483a

49891386 has 8 divisors (see below), whose sum is σ = 99782784. Its totient is φ = 16630460.

The previous prime is 49891367. The next prime is 49891433. The reversal of 49891386 is 68319894.

49891386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

49891386 is an admirable number.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 4157610 + ... + 4157621.

It is an arithmetic number, because the mean of its divisors is an integer number (12472848).

Almost surely, 249891386 is an apocalyptic number.

49891386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

49891386 is a wasteful number, since it uses less digits than its factorization.

49891386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8315236.

The product of its digits is 373248, while the sum is 48.

The square root of 49891386 is about 7063.3834668663. The cubic root of 49891386 is about 368.1361982079.

The spelling of 49891386 in words is "forty-nine million, eight hundred ninety-one thousand, three hundred eighty-six".

Divisors: 1 2 3 6 8315231 16630462 24945693 49891386