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30655043311 = 292719534093
BaseRepresentation
bin11100100011001011…
…101101011011101111
32221010101212112212111
4130203023231123233
51000240142341221
622025511544451
72133442366054
oct344313553357
987111775774
1030655043311
1112000a77842
125b3638b127
132b76cc37a9
1416ab43d02b
15be63babe1
hex7232ed6ef

30655043311 has 16 divisors (see below), whose sum is σ = 31870316160. Its totient is φ = 29450615040.

The previous prime is 30655043299. The next prime is 30655043323. The reversal of 30655043311 is 11334055603.

It is an interprime number because it is at equal distance from previous prime (30655043299) and next prime (30655043323).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30655043311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30655043371) 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, 7487581 + ... + 7491673.

It is an arithmetic number, because the mean of its divisors is an integer number (1991894760).

Almost surely, 230655043311 is an apocalyptic number.

30655043311 is a deficient number, since it is larger than the sum of its proper divisors (1215272849).

30655043311 is a wasteful number, since it uses less digits than its factorization.

30655043311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5346.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 30655043311 its reverse (11334055603), we get a palindrome (41989098914).

The spelling of 30655043311 in words is "thirty billion, six hundred fifty-five million, forty-three thousand, three hundred eleven".

Divisors: 1 29 271 953 4093 7859 27637 118697 258263 1109203 3900629 7489627 32166887 113118241 1057070459 30655043311