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54431849 is a prime number
BaseRepresentation
bin1100111110100…
…1000001101001
310210102102110102
43033221001221
5102413304344
65222355145
71230443303
oct317510151
9123372412
1054431849
11287a84aa
121628bab5
13b37a6c4
14732c973
154ba2e4e
hex33e9069

54431849 has 2 divisors, whose sum is σ = 54431850. Its totient is φ = 54431848.

The previous prime is 54431843. The next prime is 54431857. The reversal of 54431849 is 94813445.

54431849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32855824 + 21576025 = 5732^2 + 4645^2 .

It is a cyclic number.

It is not a de Polignac number, because 54431849 - 212 = 54427753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54431843) 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 as a sum of consecutive naturals, namely, 27215924 + 27215925.

It is an arithmetic number, because the mean of its divisors is an integer number (27215925).

Almost surely, 254431849 is an apocalyptic number.

It is an amenable number.

54431849 is a deficient number, since it is larger than the sum of its proper divisors (1).

54431849 is an equidigital number, since it uses as much as digits as its factorization.

54431849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 54431849 is about 7377.7943180872. The cubic root of 54431849 is about 378.9812254144.

The spelling of 54431849 in words is "fifty-four million, four hundred thirty-one thousand, eight hundred forty-nine".