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54086931 = 326198519
BaseRepresentation
bin1100111001010…
…0110100010011
310202202220022200
43032110310103
5102321240211
65211134243
71224505563
oct316246423
9122686280
1054086931
1128592348
1216144383
13b289702
14727cda3
154b35b56
hex3394d13

54086931 has 12 divisors (see below), whose sum is σ = 79407120. Its totient is φ = 35466480.

The previous prime is 54086917. The next prime is 54086947. The reversal of 54086931 is 13968045.

54086931 is a `hidden beast` number, since 540 + 86 + 9 + 31 = 666.

54086931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54086931 - 29 = 54086419 is a prime.

It is a super-2 number, since 2×540869312 = 5850792209997522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54086531) 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 11 ways as a sum of consecutive naturals, for example, 48711 + ... + 49808.

It is an arithmetic number, because the mean of its divisors is an integer number (6617260).

Almost surely, 254086931 is an apocalyptic number.

54086931 is a deficient number, since it is larger than the sum of its proper divisors (25320189).

54086931 is a wasteful number, since it uses less digits than its factorization.

54086931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98586 (or 98583 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 54086931 is about 7354.3817551171. The cubic root of 54086931 is about 378.1790325172.

The spelling of 54086931 in words is "fifty-four million, eighty-six thousand, nine hundred thirty-one".

Divisors: 1 3 9 61 183 549 98519 295557 886671 6009659 18028977 54086931