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30332425 = 522574721
BaseRepresentation
bin111001110110…
…1011000001001
32010002001021011
41303231120021
530231114200
63002043521
7515551504
oct163553011
963061234
1030332425
1116138222
12a1a95a1
1363903a6
14405813b
1529e25ba
hex1ced609

30332425 has 12 divisors (see below), whose sum is σ = 37766556. Its totient is φ = 24166400.

The previous prime is 30332399. The next prime is 30332429. The reversal of 30332425 is 52423303.

It can be written as a sum of positive squares in 6 ways, for example, as 1301881 + 29030544 = 1141^2 + 5388^2 .

It is not a de Polignac number, because 30332425 - 27 = 30332297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30332396 and 30332405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30332429) 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 11 ways as a sum of consecutive naturals, for example, 4065 + ... + 8785.

It is an arithmetic number, because the mean of its divisors is an integer number (3147213).

Almost surely, 230332425 is an apocalyptic number.

It is an amenable number.

30332425 is a deficient number, since it is larger than the sum of its proper divisors (7434131).

30332425 is a wasteful number, since it uses less digits than its factorization.

30332425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4983 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 30332425 is about 5507.4880844174. The cubic root of 30332425 is about 311.8667282275.

Adding to 30332425 its reverse (52423303), we get a palindrome (82755728).

The spelling of 30332425 in words is "thirty million, three hundred thirty-two thousand, four hundred twenty-five".

Divisors: 1 5 25 257 1285 4721 6425 23605 118025 1213297 6066485 30332425