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54681471 = 3213235951
BaseRepresentation
bin1101000010010…
…1111101111111
310210220002212200
43100211331333
5102444301341
65232002543
71232533125
oct320457577
9123802780
1054681471
1128958aa9
1216390453
13b437200
147395915
154c01db6
hex3425f7f

54681471 has 18 divisors (see below), whose sum is σ = 85529808. Its totient is φ = 33649200.

The previous prime is 54681467. The next prime is 54681493. The reversal of 54681471 is 17418645.

It is a happy number.

It is not a de Polignac number, because 54681471 - 22 = 54681467 is a prime.

It is a super-3 number, since 3×546814713 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54681461) 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 17 ways as a sum of consecutive naturals, for example, 16455 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (4751656).

Almost surely, 254681471 is an apocalyptic number.

54681471 is a deficient number, since it is larger than the sum of its proper divisors (30848337).

54681471 is a wasteful number, since it uses less digits than its factorization.

54681471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35983 (or 35967 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 54681471 is about 7394.6920828389. The cubic root of 54681471 is about 379.5596723281.

The spelling of 54681471 in words is "fifty-four million, six hundred eighty-one thousand, four hundred seventy-one".

Divisors: 1 3 9 13 39 117 169 507 1521 35951 107853 323559 467363 1402089 4206267 6075719 18227157 54681471