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54686613 = 3151120721
BaseRepresentation
bin1101000010011…
…1001110010101
310210220100221010
43100213032111
5102444432423
65232042433
71232554122
oct320471625
9123810833
1054686613
1128961953
1216393419
13b439657
147397749
154c03693
hex3427395

54686613 has 8 divisors (see below), whose sum is σ = 73398976. Its totient is φ = 36216000.

The previous prime is 54686591. The next prime is 54686627. The reversal of 54686613 is 31668645.

54686613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54686613 - 26 = 54686549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54686113) 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 7 ways as a sum of consecutive naturals, for example, 59908 + ... + 60813.

It is an arithmetic number, because the mean of its divisors is an integer number (9174872).

Almost surely, 254686613 is an apocalyptic number.

It is an amenable number.

54686613 is a deficient number, since it is larger than the sum of its proper divisors (18712363).

54686613 is a wasteful number, since it uses less digits than its factorization.

54686613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120875.

The product of its digits is 103680, while the sum is 39.

The square root of 54686613 is about 7395.0397564854. The cubic root of 54686613 is about 379.5715693176.

The spelling of 54686613 in words is "fifty-four million, six hundred eighty-six thousand, six hundred thirteen".

Divisors: 1 3 151 453 120721 362163 18228871 54686613