Search a number
-
+
30235655 = 541831777
BaseRepresentation
bin111001101010…
…1110000000111
32002220010112002
41303111300013
530220020110
63000015515
7514666412
oct163256007
962803462
1030235655
111608154a
12a16159b
136358328
144030b79
1529c3aa5
hex1cd5c07

30235655 has 16 divisors (see below), whose sum is σ = 37636704. Its totient is φ = 23301120.

The previous prime is 30235613. The next prime is 30235679. The reversal of 30235655 is 55653203.

It is a happy number.

It is not a de Polignac number, because 30235655 - 28 = 30235399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 16127 + ... + 17903.

It is an arithmetic number, because the mean of its divisors is an integer number (2352294).

Almost surely, 230235655 is an apocalyptic number.

30235655 is a deficient number, since it is larger than the sum of its proper divisors (7401049).

30235655 is a wasteful number, since it uses less digits than its factorization.

30235655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 13500, while the sum is 29.

The square root of 30235655 is about 5498.6957544494. The cubic root of 30235655 is about 311.5347238442.

Adding to 30235655 its reverse (55653203), we get a palindrome (85888858).

The spelling of 30235655 in words is "thirty million, two hundred thirty-five thousand, six hundred fifty-five".

Divisors: 1 5 41 83 205 415 1777 3403 8885 17015 72857 147491 364285 737455 6047131 30235655