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48139283 = 58782009
BaseRepresentation
bin1011011110100…
…0110000010011
310100120201200102
42313220300103
544310424113
64435443015
71123114523
oct267506023
9110521612
1048139283
112519a835
121415646b
139c864aa
146571683
15435d758
hex2de8c13

48139283 has 4 divisors (see below), whose sum is σ = 48221880. Its totient is φ = 48056688.

The previous prime is 48139277. The next prime is 48139319. The reversal of 48139283 is 38293184.

48139283 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 is a cyclic number.

It is not a de Polignac number, because 48139283 - 216 = 48073747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48139583) 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, 40418 + ... + 41591.

It is an arithmetic number, because the mean of its divisors is an integer number (12055470).

Almost surely, 248139283 is an apocalyptic number.

48139283 is a deficient number, since it is larger than the sum of its proper divisors (82597).

48139283 is an equidigital number, since it uses as much as digits as its factorization.

48139283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82596.

The product of its digits is 41472, while the sum is 38.

The square root of 48139283 is about 6938.2478335672. The cubic root of 48139283 is about 363.7752985636.

The spelling of 48139283 in words is "forty-eight million, one hundred thirty-nine thousand, two hundred eighty-three".

Divisors: 1 587 82009 48139283