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54138824 = 2329233357
BaseRepresentation
bin1100111010000…
…1011111001000
310202212112111122
43032201133020
5102324420244
65212214412
71225113065
oct316413710
9122775448
1054138824
1128618333
121616a408
13b2a720c
147293c6c
154b461ee
hex33a17c8

54138824 has 16 divisors (see below), whose sum is σ = 105011100. Its totient is φ = 26135872.

The previous prime is 54138823. The next prime is 54138857. The reversal of 54138824 is 42883145.

54138824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 47472100 + 6666724 = 6890^2 + 2582^2 .

It is not an unprimeable number, because it can be changed into a prime (54138823) 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 3 ways as a sum of consecutive naturals, for example, 116447 + ... + 116910.

Almost surely, 254138824 is an apocalyptic number.

It is an amenable number.

54138824 is a deficient number, since it is larger than the sum of its proper divisors (50872276).

54138824 is a wasteful number, since it uses less digits than its factorization.

54138824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233392 (or 233388 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 54138824 is about 7357.9089420840. The cubic root of 54138824 is about 378.2999401699.

The spelling of 54138824 in words is "fifty-four million, one hundred thirty-eight thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 29 58 116 232 233357 466714 933428 1866856 6767353 13534706 27069412 54138824