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30684467085 = 354937414347
BaseRepresentation
bin11100100100111011…
…111100111110001101
32221012110020102200220
4130210323330332031
51000320210421320
622032442341553
72134250444466
oct344473747615
987173212626
1030684467085
1112016644308
125b441ba8b9
132b801263cc
1416b12dbd6d
15be8c7de40
hex724efcf8d

30684467085 has 16 divisors (see below), whose sum is σ = 49105210176. Its totient is φ = 16361694848.

The previous prime is 30684467083. The next prime is 30684467087. The reversal of 30684467085 is 58076448603.

It is an interprime number because it is at equal distance from previous prime (30684467083) and next prime (30684467087).

It is a cyclic number.

It is not a de Polignac number, because 30684467085 - 21 = 30684467083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30684467083) 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, 133119 + ... + 281228.

It is an arithmetic number, because the mean of its divisors is an integer number (3069075636).

Almost surely, 230684467085 is an apocalyptic number.

It is an amenable number.

30684467085 is a deficient number, since it is larger than the sum of its proper divisors (18420743091).

30684467085 is a wasteful number, since it uses less digits than its factorization.

30684467085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419292.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 30684467085 in words is "thirty billion, six hundred eighty-four million, four hundred sixty-seven thousand, eighty-five".

Divisors: 1 3 5 15 4937 14811 24685 74055 414347 1243041 2071735 6215205 2045631139 6136893417 10228155695 30684467085