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54148887 = 32132915959
BaseRepresentation
bin1100111010001…
…1111100010111
310202220001022100
43032203330113
5102330231022
65212333143
71225154322
oct316437427
9122801270
1054148887
1128624951
12161741b3
13b2ab980
1472977b9
154b491ac
hex33a3f17

54148887 has 24 divisors (see below), whose sum is σ = 87141600. Its totient is φ = 32171328.

The previous prime is 54148883. The next prime is 54148889. The reversal of 54148887 is 78884145.

It is not a de Polignac number, because 54148887 - 22 = 54148883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54148883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4587 + ... + 11372.

It is an arithmetic number, because the mean of its divisors is an integer number (3630900).

Almost surely, 254148887 is an apocalyptic number.

54148887 is a deficient number, since it is larger than the sum of its proper divisors (32992713).

54148887 is a wasteful number, since it uses less digits than its factorization.

54148887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16007 (or 16004 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 54148887 is about 7358.5927323096. The cubic root of 54148887 is about 378.3233774261.

The spelling of 54148887 in words is "fifty-four million, one hundred forty-eight thousand, eight hundred eighty-seven".

Divisors: 1 3 9 13 29 39 87 117 261 377 1131 3393 15959 47877 143631 207467 462811 622401 1388433 1867203 4165299 6016543 18049629 54148887