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30405038811 = 377918327329
BaseRepresentation
bin11100010100010010…
…000001001011011011
32220110222110000011120
4130110102001023123
5444232142220221
621545021300323
72124315365010
oct342422011333
986428400146
1030405038811
1111992940754
125a867046a3
132b3727c034
141686161707
15bce4855c6
hex7144812db

30405038811 has 16 divisors (see below), whose sum is σ = 46917964800. Its totient is φ = 17154379008.

The previous prime is 30405038801. The next prime is 30405038821. The reversal of 30405038811 is 11883050403.

It is an interprime number because it is at equal distance from previous prime (30405038801) and next prime (30405038821).

It is not a de Polignac number, because 30405038811 - 27 = 30405038683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30405038801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9162006 + ... + 9165323.

It is an arithmetic number, because the mean of its divisors is an integer number (2932372800).

Almost surely, 230405038811 is an apocalyptic number.

30405038811 is a deficient number, since it is larger than the sum of its proper divisors (16512925989).

30405038811 is a wasteful number, since it uses less digits than its factorization.

30405038811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18327418.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 30405038811 in words is "thirty billion, four hundred five million, thirty-eight thousand, eight hundred eleven".

Divisors: 1 3 7 21 79 237 553 1659 18327329 54981987 128291303 384873909 1447858991 4343576973 10135012937 30405038811