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49986727 = 77140961
BaseRepresentation
bin1011111010101…
…1110010100111
310111001120220021
42332223302213
5100244033402
64543220011
71144610620
oct276536247
9114046807
1049986727
112624184a
12148a7607
13a48235b
1468d2a47
1545c5d37
hex2fabca7

49986727 has 4 divisors (see below), whose sum is σ = 57127696. Its totient is φ = 42845760.

The previous prime is 49986707. The next prime is 49986733. The reversal of 49986727 is 72768994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72768994 = 236384497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49986727 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 (49986707) 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, 3570474 + ... + 3570487.

It is an arithmetic number, because the mean of its divisors is an integer number (14281924).

Almost surely, 249986727 is an apocalyptic number.

49986727 is a deficient number, since it is larger than the sum of its proper divisors (7140969).

49986727 is an equidigital number, since it uses as much as digits as its factorization.

49986727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7140968.

The product of its digits is 1524096, while the sum is 52.

The square root of 49986727 is about 7070.1292067401. The cubic root of 49986727 is about 368.3705482123.

The spelling of 49986727 in words is "forty-nine million, nine hundred eighty-six thousand, seven hundred twenty-seven".

Divisors: 1 7 7140961 49986727