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30532205 = 51159972
BaseRepresentation
bin111010001111…
…0001001101101
32010110012022102
41310132021231
530304012310
63010224445
7520343114
oct164361155
963405272
1030532205
1116264330
12a285125
1364302c2
1440aac7b
152a318a5
hex1d1e26d

30532205 has 24 divisors (see below), whose sum is σ = 41070240. Its totient is φ = 21603840.

The previous prime is 30532189. The next prime is 30532213. The reversal of 30532205 is 50223503.

It is not a de Polignac number, because 30532205 - 24 = 30532189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314717 + ... + 314813.

It is an arithmetic number, because the mean of its divisors is an integer number (1711260).

Almost surely, 230532205 is an apocalyptic number.

It is an amenable number.

30532205 is a deficient number, since it is larger than the sum of its proper divisors (10538035).

30532205 is an equidigital number, since it uses as much as digits as its factorization.

30532205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 30532205 is about 5525.5954430269. The cubic root of 30532205 is about 312.5499184257.

Adding to 30532205 its reverse (50223503), we get a palindrome (80755708).

It can be divided in two parts, 30 and 532205, that added together give a palindrome (532235).

The spelling of 30532205 in words is "thirty million, five hundred thirty-two thousand, two hundred five".

Divisors: 1 5 11 55 59 97 295 485 649 1067 3245 5335 5723 9409 28615 47045 62953 103499 314765 517495 555131 2775655 6106441 30532205