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48180949 = 73660013
BaseRepresentation
bin1011011111001…
…0111011010101
310100122211211121
42313302323111
544313242244
64440403541
71123350145
oct267627325
9110584747
1048180949
1125219073
12141765b1
139c9c44b
146582925
15436ac84
hex2df2ed5

48180949 has 4 divisors (see below), whose sum is σ = 48841036. Its totient is φ = 47520864.

The previous prime is 48180947. The next prime is 48180971. The reversal of 48180949 is 94908184.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21068100 + 27112849 = 4590^2 + 5207^2 .

It is a cyclic number.

It is not a de Polignac number, because 48180949 - 21 = 48180947 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 (48180947) 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, 329934 + ... + 330079.

It is an arithmetic number, because the mean of its divisors is an integer number (12210259).

Almost surely, 248180949 is an apocalyptic number.

It is an amenable number.

48180949 is a deficient number, since it is larger than the sum of its proper divisors (660087).

48180949 is an equidigital number, since it uses as much as digits as its factorization.

48180949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660086.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 48180949 is about 6941.2498154151. The cubic root of 48180949 is about 363.8802211257.

The spelling of 48180949 in words is "forty-eight million, one hundred eighty thousand, nine hundred forty-nine".

Divisors: 1 73 660013 48180949