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55324143 = 3271946219
BaseRepresentation
bin1101001100001…
…0110111101111
310212002202110100
43103002313233
5103130333033
65253442143
71241150610
oct323026757
9125082410
1055324143
1129257936
1216640353
13b6008a4
1474c1c07
154ccc513
hex34c2def

55324143 has 24 divisors (see below), whose sum is σ = 96137600. Its totient is φ = 29949264.

The previous prime is 55324109. The next prime is 55324151. The reversal of 55324143 is 34142355.

It is not a de Polignac number, because 55324143 - 26 = 55324079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55324153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21913 + ... + 24306.

Almost surely, 255324143 is an apocalyptic number.

55324143 is a deficient number, since it is larger than the sum of its proper divisors (40813457).

55324143 is a wasteful number, since it uses less digits than its factorization.

55324143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46251 (or 46248 counting only the distinct ones).

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

The square root of 55324143 is about 7438.0200994620. The cubic root of 55324143 is about 381.0408743632.

Adding to 55324143 its reverse (34142355), we get a palindrome (89466498).

The spelling of 55324143 in words is "fifty-five million, three hundred twenty-four thousand, one hundred forty-three".

Divisors: 1 3 7 9 19 21 57 63 133 171 399 1197 46219 138657 323533 415971 878161 970599 2634483 2911797 6147127 7903449 18441381 55324143