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49490783 = 213723159
BaseRepresentation
bin1011110011001…
…0101101011111
310110010101120222
42330302231133
5100132201113
64524431555
71140443666
oct274625537
9113111528
1049490783
1125a33181
12146a85bb
13a33a6b4
146803ddd
154528e08
hex2f32b5f

49490783 has 4 divisors (see below), whose sum is σ = 49516080. Its totient is φ = 49465488.

The previous prime is 49490773. The next prime is 49490803. The reversal of 49490783 is 38709494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49490783 - 28 = 49490527 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49490713) 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, 9443 + ... + 13716.

It is an arithmetic number, because the mean of its divisors is an integer number (12379020).

Almost surely, 249490783 is an apocalyptic number.

49490783 is a deficient number, since it is larger than the sum of its proper divisors (25297).

49490783 is a wasteful number, since it uses less digits than its factorization.

49490783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25296.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 49490783 is about 7034.9685855731. The cubic root of 49490783 is about 367.1482323591.

The spelling of 49490783 in words is "forty-nine million, four hundred ninety thousand, seven hundred eighty-three".

Divisors: 1 2137 23159 49490783