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48508013 = 106945377
BaseRepresentation
bin1011100100001…
…0110001101101
310101021110111002
42321002301231
544404224023
64451410045
71126211531
oct271026155
9111243432
1048508013
1125421874
12142b3925
13a085288
146629bc1
1543d2b28
hex2e42c6d

48508013 has 4 divisors (see below), whose sum is σ = 48554460. Its totient is φ = 48461568.

The previous prime is 48508003. The next prime is 48508027. The reversal of 48508013 is 31080584.

48508013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 24820324 + 23687689 = 4982^2 + 4867^2 .

It is a cyclic number.

It is not a de Polignac number, because 48508013 - 24 = 48507997 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 (48508003) by changing a digit.

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, 21620 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (12138615).

Almost surely, 248508013 is an apocalyptic number.

It is an amenable number.

48508013 is a deficient number, since it is larger than the sum of its proper divisors (46447).

48508013 is a wasteful number, since it uses less digits than its factorization.

48508013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46446.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 48508013 is about 6964.7694147043. The cubic root of 48508013 is about 364.7017341905.

Adding to 48508013 its reverse (31080584), we get a palindrome (79588597).

The spelling of 48508013 in words is "forty-eight million, five hundred eight thousand, thirteen".

Divisors: 1 1069 45377 48508013