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30132285 = 358922571
BaseRepresentation
bin111001011110…
…0100000111101
32002200212201120
41302330200331
530203213120
62553501153
7514056141
oct162744075
962625646
1030132285
1116010917
12a1117b9
136320271
144005221
1529a3140
hex1cbc83d

30132285 has 16 divisors (see below), whose sum is σ = 48755520. Its totient is φ = 15889280.

The previous prime is 30132269. The next prime is 30132359. The reversal of 30132285 is 58223103.

It is not a de Polignac number, because 30132285 - 24 = 30132269 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9951 + ... + 12620.

It is an arithmetic number, because the mean of its divisors is an integer number (3047220).

Almost surely, 230132285 is an apocalyptic number.

It is an amenable number.

30132285 is a deficient number, since it is larger than the sum of its proper divisors (18623235).

30132285 is a wasteful number, since it uses less digits than its factorization.

30132285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22668.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30132285 is about 5489.2882052230. The cubic root of 30132285 is about 311.1792923366.

Adding to 30132285 its reverse (58223103), we get a palindrome (88355388).

The spelling of 30132285 in words is "thirty million, one hundred thirty-two thousand, two hundred eighty-five".

Divisors: 1 3 5 15 89 267 445 1335 22571 67713 112855 338565 2008819 6026457 10044095 30132285