Search a number
-
+
43530085 = 527133209
BaseRepresentation
bin1010011000001…
…1011101100101
310000220120001101
42212003131211
542120430320
64153000101
71035666604
oct246033545
9100816041
1043530085
1122631885
12126b3031
139031561
145ad1a3b
153c4cc0a
hex2983765

43530085 has 8 divisors (see below), whose sum is σ = 52271640. Its totient is φ = 34800384.

The previous prime is 43530077. The next prime is 43530089. The reversal of 43530085 is 58003534.

43530085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 17581249 + 25948836 = 4193^2 + 5094^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43530085 - 23 = 43530077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43530089) 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 7 ways as a sum of consecutive naturals, for example, 11961 + ... + 15169.

It is an arithmetic number, because the mean of its divisors is an integer number (6533955).

Almost surely, 243530085 is an apocalyptic number.

It is an amenable number.

43530085 is a deficient number, since it is larger than the sum of its proper divisors (8741555).

43530085 is a wasteful number, since it uses less digits than its factorization.

43530085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5927.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 43530085 is about 6597.7333228920. The cubic root of 43530085 is about 351.7735420340.

The spelling of 43530085 in words is "forty-three million, five hundred thirty thousand, eighty-five".

Divisors: 1 5 2713 3209 13565 16045 8706017 43530085