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30132211 = 171772483
BaseRepresentation
bin111001011110…
…0011111110011
32002200212121211
41302330133303
530203212321
62553500551
7514056004
oct162743763
962625554
1030132211
111601085a
12a111757
136320215
1440051ab
1529a30e1
hex1cbc7f3

30132211 has 4 divisors (see below), whose sum is σ = 31904712. Its totient is φ = 28359712.

The previous prime is 30132209. The next prime is 30132251. The reversal of 30132211 is 11223103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30132211 - 21 = 30132209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30132191 and 30132200.

It is not an unprimeable number, because it can be changed into a prime (30132251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886225 + ... + 886258.

It is an arithmetic number, because the mean of its divisors is an integer number (7976178).

Almost surely, 230132211 is an apocalyptic number.

30132211 is a deficient number, since it is larger than the sum of its proper divisors (1772501).

30132211 is a wasteful number, since it uses less digits than its factorization.

30132211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772500.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 30132211 is about 5489.2814648185. The cubic root of 30132211 is about 311.1790376011.

Adding to 30132211 its reverse (11223103), we get a palindrome (41355314).

The spelling of 30132211 in words is "thirty million, one hundred thirty-two thousand, two hundred eleven".

Divisors: 1 17 1772483 30132211