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54143073 = 351811231
BaseRepresentation
bin1100111010001…
…0100001100001
310202212202100000
43032202201201
5102330034243
65212250213
71225131345
oct316424141
9122782300
1054143073
1128620546
1216170969
13b2a912a
147295625
154b475d3
hex33a2861

54143073 has 24 divisors (see below), whose sum is σ = 81617536. Its totient is φ = 35866800.

The previous prime is 54143071. The next prime is 54143077. The reversal of 54143073 is 37034145.

It is not a de Polignac number, because 54143073 - 21 = 54143071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54143071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43368 + ... + 44598.

Almost surely, 254143073 is an apocalyptic number.

It is an amenable number.

54143073 is a deficient number, since it is larger than the sum of its proper divisors (27474463).

54143073 is a wasteful number, since it uses less digits than its factorization.

54143073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 54143073 is about 7358.1976733437. The cubic root of 54143073 is about 378.3098366686.

The spelling of 54143073 in words is "fifty-four million, one hundred forty-three thousand, seventy-three".

Divisors: 1 3 9 27 81 181 243 543 1231 1629 3693 4887 11079 14661 33237 43983 99711 222811 299133 668433 2005299 6015897 18047691 54143073