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30214445 = 58277307
BaseRepresentation
bin111001101000…
…0100100101101
32002212001102112
41303100210231
530213330240
62555333405
7514550522
oct163204455
962761375
1030214445
1116067618
12a151265
13634b791
144027149
1529bc665
hex1cd092d

30214445 has 8 divisors (see below), whose sum is σ = 36306144. Its totient is φ = 24139024.

The previous prime is 30214441. The next prime is 30214447. The reversal of 30214445 is 54441203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30214445 - 22 = 30214441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30214445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30214441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482 + ... + 7788.

It is an arithmetic number, because the mean of its divisors is an integer number (4538268).

Almost surely, 230214445 is an apocalyptic number.

It is an amenable number.

30214445 is a deficient number, since it is larger than the sum of its proper divisors (6091699).

30214445 is an equidigital number, since it uses as much as digits as its factorization.

30214445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8139.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 30214445 is about 5496.7667769335. The cubic root of 30214445 is about 311.4618606725.

Adding to 30214445 its reverse (54441203), we get a palindrome (84655648).

The spelling of 30214445 in words is "thirty million, two hundred fourteen thousand, four hundred forty-five".

Divisors: 1 5 827 4135 7307 36535 6042889 30214445