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30044445 = 354674289
BaseRepresentation
bin111001010011…
…1000100011101
32002112102020020
41302213010131
530142410240
62551542353
7513242064
oct162470435
962472206
1030044445
1115a60922
12a08a9b9
1362bc2a2
143dc11db
1529870d0
hex1ca711d

30044445 has 16 divisors (see below), whose sum is σ = 48185280. Its totient is φ = 15985664.

The previous prime is 30044419. The next prime is 30044447. The reversal of 30044445 is 54444003.

It is a cyclic number.

It is not a de Polignac number, because 30044445 - 26 = 30044381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30044447) 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 15 ways as a sum of consecutive naturals, for example, 4861 + ... + 9149.

It is an arithmetic number, because the mean of its divisors is an integer number (3011580).

Almost surely, 230044445 is an apocalyptic number.

It is an amenable number.

30044445 is a deficient number, since it is larger than the sum of its proper divisors (18140835).

30044445 is a wasteful number, since it uses less digits than its factorization.

30044445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30044445 is about 5481.2813283027. The cubic root of 30044445 is about 310.8766203798.

Adding to 30044445 its reverse (54444003), we get a palindrome (84488448).

The spelling of 30044445 in words is "thirty million, forty-four thousand, four hundred forty-five".

Divisors: 1 3 5 15 467 1401 2335 4289 7005 12867 21445 64335 2002963 6008889 10014815 30044445