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30278300497 = 1910714893409
BaseRepresentation
bin11100001100101110…
…100011001101010001
32220011010222000212221
4130030232203031101
5444002221103442
621524253021041
72121216210364
oct341456431521
986133860787
1030278300497
1111928347345
125a50184781
132b16c36053
1416733b00db
15bc329d467
hex70cba3351

30278300497 has 8 divisors (see below), whose sum is σ = 32169765600. Its totient is φ = 28416622464.

The previous prime is 30278300467. The next prime is 30278300509. The reversal of 30278300497 is 79400387203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30278300497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30278300407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7444672 + ... + 7448737.

It is an arithmetic number, because the mean of its divisors is an integer number (4021220700).

Almost surely, 230278300497 is an apocalyptic number.

It is an amenable number.

30278300497 is a deficient number, since it is larger than the sum of its proper divisors (1891465103).

30278300497 is a wasteful number, since it uses less digits than its factorization.

30278300497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14893535.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 30278300497 in words is "thirty billion, two hundred seventy-eight million, three hundred thousand, four hundred ninety-seven".

Divisors: 1 19 107 2033 14893409 282974771 1593594763 30278300497