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54052540 = 2257973391
BaseRepresentation
bin1100111000110…
…0011010111100
310202201011010221
43032030122330
5102314140130
65210311124
71224303403
oct316143274
9122634127
1054052540
1128569523
12161284a4
13b276b69
14727063a
154b2a87a
hex338c6bc

54052540 has 24 divisors (see below), whose sum is σ = 113686272. Its totient is φ = 21587520.

The previous prime is 54052529. The next prime is 54052541. The reversal of 54052540 is 4525045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54052541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14245 + ... + 17635.

It is an arithmetic number, because the mean of its divisors is an integer number (4736928).

Almost surely, 254052540 is an apocalyptic number.

It is an amenable number.

54052540 is an abundant number, since it is smaller than the sum of its proper divisors (59633732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54052540 is a wasteful number, since it uses less digits than its factorization.

54052540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 54052540 is about 7352.0432534092. The cubic root of 54052540 is about 378.0988608846.

Adding to 54052540 its reverse (4525045), we get a palindrome (58577585).

The spelling of 54052540 in words is "fifty-four million, fifty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 797 1594 3188 3391 3985 6782 7970 13564 15940 16955 33910 67820 2702627 5405254 10810508 13513135 27026270 54052540