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54143235 = 345433109
BaseRepresentation
bin1100111010001…
…0100100000011
310202212202120000
43032202210003
5102330040420
65212251043
71225131666
oct316424403
9122782500
1054143235
1128620683
1216170a83
13b2a9223
1472956dd
154b47690
hex33a2903

54143235 has 40 divisors (see below), whose sum is σ = 99345840. Its totient is φ = 28195776.

The previous prime is 54143231. The next prime is 54143269. The reversal of 54143235 is 53234145.

It is not a de Polignac number, because 54143235 - 22 = 54143231 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 54143199 and 54143208.

It is not an unprimeable number, because it can be changed into a prime (54143231) 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 39 ways as a sum of consecutive naturals, for example, 15861 + ... + 18969.

It is an arithmetic number, because the mean of its divisors is an integer number (2483646).

Almost surely, 254143235 is an apocalyptic number.

54143235 is a deficient number, since it is larger than the sum of its proper divisors (45202605).

54143235 is a wasteful number, since it uses less digits than its factorization.

54143235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3169 (or 3160 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 54143235 is about 7358.2086814659. The cubic root of 54143235 is about 378.3102139784.

It can be divided in two parts, 5414 and 3235, that added together give a square (8649 = 932).

The spelling of 54143235 in words is "fifty-four million, one hundred forty-three thousand, two hundred thirty-five".

Divisors: 1 3 5 9 15 27 43 45 81 129 135 215 387 405 645 1161 1935 3109 3483 5805 9327 15545 17415 27981 46635 83943 133687 139905 251829 401061 419715 668435 1203183 1259145 2005305 3609549 6015915 10828647 18047745 54143235