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54500013 = 3311317863
BaseRepresentation
bin1100111111100…
…1101010101101
310210112212222000
43033321222231
5102423000023
65224042513
71231146111
oct317715255
9123485860
1054500013
1128844737
1216303439
13b3a2739
147349741
154bb8243
hex33f9aad

54500013 has 16 divisors (see below), whose sum is σ = 81459840. Its totient is φ = 36009792.

The previous prime is 54500009. The next prime is 54500021. The reversal of 54500013 is 31000545.

It is not a de Polignac number, because 54500013 - 22 = 54500009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54500003) 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 15 ways as a sum of consecutive naturals, for example, 5881 + ... + 11982.

It is an arithmetic number, because the mean of its divisors is an integer number (5091240).

Almost surely, 254500013 is an apocalyptic number.

It is an amenable number.

54500013 is a deficient number, since it is larger than the sum of its proper divisors (26959827).

54500013 is a wasteful number, since it uses less digits than its factorization.

54500013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17985 (or 17979 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 54500013 is about 7382.4124105877. The cubic root of 54500013 is about 379.1393564894.

Adding to 54500013 its reverse (31000545), we get a palindrome (85500558).

The spelling of 54500013 in words is "fifty-four million, five hundred thousand, thirteen".

Divisors: 1 3 9 27 113 339 1017 3051 17863 53589 160767 482301 2018519 6055557 18166671 54500013