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30444325 = 5231163241
BaseRepresentation
bin111010000100…
…0101100100101
32010021201202121
41310020230211
530243204300
63004305541
7516525652
oct164105445
963251677
1030444325
11162042aa
12a2422b1
1363cc2c2
144086c29
152a1581a
hex1d08b25

30444325 has 24 divisors (see below), whose sum is σ = 39370496. Its totient is φ = 23328000.

The previous prime is 30444311. The next prime is 30444343. The reversal of 30444325 is 52344403.

It is not a de Polignac number, because 30444325 - 217 = 30313253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 30444325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126205 + ... + 126445.

Almost surely, 230444325 is an apocalyptic number.

It is an amenable number.

30444325 is a deficient number, since it is larger than the sum of its proper divisors (8926171).

30444325 is a wasteful number, since it uses less digits than its factorization.

30444325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 30444325 is about 5517.6376285508. The cubic root of 30444325 is about 312.2497623397.

Adding to 30444325 its reverse (52344403), we get a palindrome (82788728).

The spelling of 30444325 in words is "thirty million, four hundred forty-four thousand, three hundred twenty-five".

Divisors: 1 5 25 31 155 163 241 775 815 1205 4075 5053 6025 7471 25265 37355 39283 126325 186775 196415 982075 1217773 6088865 30444325