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54235423 = 11172973137
BaseRepresentation
bin1100111011100…
…1000100011111
310210001110000101
43032321010133
5102341013143
65214241531
71225664524
oct316710437
9123043011
1054235423
1128683970
12161b62a7
13b30c188
1472bb14b
154b64b4d
hex33b911f

54235423 has 32 divisors (see below), whose sum is σ = 66173760. Its totient is φ = 43868160.

The previous prime is 54235417. The next prime is 54235439. The reversal of 54235423 is 32453245.

It is not a de Polignac number, because 54235423 - 221 = 52138271 is a prime.

It is a super-2 number, since 2×542354232 = 5882962215977858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54235391 and 54235400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54235453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395811 + ... + 395947.

It is an arithmetic number, because the mean of its divisors is an integer number (2067930).

Almost surely, 254235423 is an apocalyptic number.

54235423 is the 4658-th heptagonal number.

54235423 is a deficient number, since it is larger than the sum of its proper divisors (11938337).

54235423 is a wasteful number, since it uses less digits than its factorization.

54235423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its digits is 14400, while the sum is 28.

The square root of 54235423 is about 7364.4703136071. The cubic root of 54235423 is about 378.5248045719.

Adding to 54235423 its reverse (32453245), we get a palindrome (86688668).

The spelling of 54235423 in words is "fifty-four million, two hundred thirty-five thousand, four hundred twenty-three".

Divisors: 1 11 17 29 73 137 187 319 493 803 1241 1507 2117 2329 3973 5423 10001 13651 23287 25619 35989 43703 67541 110011 170017 290029 395879 742951 1870187 3190319 4930493 54235423