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43053231 = 3131764937
BaseRepresentation
bin1010010000111…
…1000010101111
310000000022221010
42210033002233
542010200411
64134440303
71031642424
oct244170257
9100008833
1043053231
1122336591
1212503093
138bc54b0
145a09d4b
153ba67a6
hex290f0af

43053231 has 16 divisors (see below), whose sum is σ = 65457504. Its totient is φ = 24935424.

The previous prime is 43053211. The next prime is 43053233. The reversal of 43053231 is 13235034.

43053231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43053231 - 26 = 43053167 is a prime.

It is a super-2 number, since 2×430532312 = 3707161399078722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43053198 and 43053207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43053233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31806 + ... + 33131.

It is an arithmetic number, because the mean of its divisors is an integer number (4091094).

Almost surely, 243053231 is an apocalyptic number.

43053231 is a deficient number, since it is larger than the sum of its proper divisors (22404273).

43053231 is a wasteful number, since it uses less digits than its factorization.

43053231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64970.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 43053231 is about 6561.4960946418. The cubic root of 43053231 is about 350.4843118382.

Adding to 43053231 its reverse (13235034), we get a palindrome (56288265).

The spelling of 43053231 in words is "forty-three million, fifty-three thousand, two hundred thirty-one".

Divisors: 1 3 13 17 39 51 221 663 64937 194811 844181 1103929 2532543 3311787 14351077 43053231