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30316449 = 310105483
BaseRepresentation
bin111001110100…
…1011110100001
32010001020100110
41303221132201
530230111244
63001441533
7515454102
oct163513641
963036313
1030316449
1116127219
12a1a02a9
136386037
1440523a9
1529dc9b9
hex1ce97a1

30316449 has 4 divisors (see below), whose sum is σ = 40421936. Its totient is φ = 20210964.

The previous prime is 30316441. The next prime is 30316453. The reversal of 30316449 is 94461303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30316449 - 23 = 30316441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30316441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5052739 + ... + 5052744.

It is an arithmetic number, because the mean of its divisors is an integer number (10105484).

Almost surely, 230316449 is an apocalyptic number.

It is an amenable number.

30316449 is a deficient number, since it is larger than the sum of its proper divisors (10105487).

30316449 is a wasteful number, since it uses less digits than its factorization.

30316449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105486.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 30316449 is about 5506.0375044128. The cubic root of 30316449 is about 311.8119655124.

The spelling of 30316449 in words is "thirty million, three hundred sixteen thousand, four hundred forty-nine".

Divisors: 1 3 10105483 30316449