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48489920 = 265151531
BaseRepresentation
bin1011100011111…
…0010111000000
310101020112122222
42320332113000
544403134140
64451150212
71126105013
oct270762700
9111215588
1048489920
112540a216
12142a5368
13a079c7b
14662337a
1543cc5b5
hex2e3e5c0

48489920 has 28 divisors (see below), whose sum is σ = 115467384. Its totient is φ = 19395840.

The previous prime is 48489913. The next prime is 48489929. The reversal of 48489920 is 2998484.

It is a happy number.

48489920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48489929) 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, 75446 + ... + 76085.

Almost surely, 248489920 is an apocalyptic number.

48489920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

48489920 is an abundant number, since it is smaller than the sum of its proper divisors (66977464).

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

48489920 is a wasteful number, since it uses less digits than its factorization.

48489920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151548 (or 151538 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 48489920 is about 6963.4703991616. The cubic root of 48489920 is about 364.6563851947.

The spelling of 48489920 in words is "forty-eight million, four hundred eighty-nine thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 151531 303062 606124 757655 1212248 1515310 2424496 3030620 4848992 6061240 9697984 12122480 24244960 48489920