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30232449 = 32132331109
BaseRepresentation
bin111001101010…
…0111110000001
32002212222010100
41303110332001
530214414244
62555553013
7514654152
oct163247601
962788110
1030232449
111607a0a5
12a15b769
136356a30
14402d929
1529c2b69
hex1cd4f81

30232449 has 24 divisors (see below), whose sum is σ = 47272680. Its totient is φ = 18508032.

The previous prime is 30232429. The next prime is 30232453. The reversal of 30232449 is 94423203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2480625 + 27751824 = 1575^2 + 5268^2 .

It is not a de Polignac number, because 30232449 - 25 = 30232417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30232429) 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 23 ways as a sum of consecutive naturals, for example, 26707 + ... + 27815.

It is an arithmetic number, because the mean of its divisors is an integer number (1969695).

Almost surely, 230232449 is an apocalyptic number.

30232449 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

30232449 is a deficient number, since it is larger than the sum of its proper divisors (17040231).

30232449 is a wasteful number, since it uses less digits than its factorization.

30232449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30232449 is about 5498.4042230451. The cubic root of 30232449 is about 311.5237123896.

The spelling of 30232449 in words is "thirty million, two hundred thirty-two thousand, four hundred forty-nine".

Divisors: 1 3 9 13 39 117 233 699 1109 2097 3029 3327 9087 9981 14417 27261 43251 129753 258397 775191 2325573 3359161 10077483 30232449