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54138774 = 2310982781
BaseRepresentation
bin1100111010000…
…1011110010110
310202212112102210
43032201132112
5102324420044
65212214250
71225112664
oct316413626
9122775383
1054138774
1128618298
121616a386
13b2a71a1
147293c34
154b461b9
hex33a1796

54138774 has 16 divisors (see below), whose sum is σ = 109272240. Its totient is φ = 17880480.

The previous prime is 54138731. The next prime is 54138787. The reversal of 54138774 is 47783145.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40737 + ... + 42044.

It is an arithmetic number, because the mean of its divisors is an integer number (6829515).

Almost surely, 254138774 is an apocalyptic number.

54138774 is an abundant number, since it is smaller than the sum of its proper divisors (55133466).

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

54138774 is a wasteful number, since it uses less digits than its factorization.

54138774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82895.

The product of its digits is 94080, while the sum is 39.

The square root of 54138774 is about 7357.9055443788. The cubic root of 54138774 is about 378.2998237100.

The spelling of 54138774 in words is "fifty-four million, one hundred thirty-eight thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 109 218 327 654 82781 165562 248343 496686 9023129 18046258 27069387 54138774