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54489331 = 134191487
BaseRepresentation
bin1100111111011…
…1000011110011
310210112100022101
43033313003303
5102422124311
65223521231
71231103011
oct317670363
9123470271
1054489331
1128837706
12162b9217
13b39a910
1473458b1
154bb4ec1
hex33f70f3

54489331 has 4 divisors (see below), whose sum is σ = 58680832. Its totient is φ = 50297832.

The previous prime is 54489313. The next prime is 54489343. The reversal of 54489331 is 13398445.

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

It is not a de Polignac number, because 54489331 - 213 = 54481139 is a prime.

It is a super-2 number, since 2×544893312 = 5938174385655122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54489311) 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, 2095731 + ... + 2095756.

It is an arithmetic number, because the mean of its divisors is an integer number (14670208).

Almost surely, 254489331 is an apocalyptic number.

54489331 is a deficient number, since it is larger than the sum of its proper divisors (4191501).

54489331 is a wasteful number, since it uses less digits than its factorization.

54489331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191500.

The product of its digits is 51840, while the sum is 37.

The square root of 54489331 is about 7381.6888988903. The cubic root of 54489331 is about 379.1145844389.

The spelling of 54489331 in words is "fifty-four million, four hundred eighty-nine thousand, three hundred thirty-one".

Divisors: 1 13 4191487 54489331