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54248031 = 3237162907
BaseRepresentation
bin1100111011110…
…0001001011111
310210002002022100
43032330021133
5102341414111
65214420143
71226046345
oct316741137
9123062270
1054248031
1128692392
1216201653
13b314b36
1472c1995
154b68756
hex33bc25f

54248031 has 12 divisors (see below), whose sum is σ = 80476552. Its totient is φ = 35187696.

The previous prime is 54247943. The next prime is 54248057. The reversal of 54248031 is 13084245.

It is not a de Polignac number, because 54248031 - 210 = 54247007 is a prime.

It is a super-2 number, since 2×542480312 = 5885697734753922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54247986 and 54248004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54248231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81121 + ... + 81786.

Almost surely, 254248031 is an apocalyptic number.

54248031 is a deficient number, since it is larger than the sum of its proper divisors (26228521).

54248031 is a wasteful number, since it uses less digits than its factorization.

54248031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162950 (or 162947 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 54248031 is about 7365.3262656857. The cubic root of 54248031 is about 378.5541339333.

The spelling of 54248031 in words is "fifty-four million, two hundred forty-eight thousand, thirty-one".

Divisors: 1 3 9 37 111 333 162907 488721 1466163 6027559 18082677 54248031