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30311042406 = 236783908441
BaseRepresentation
bin11100001110101011…
…011100110101100110
32220020102120111100020
4130032223130311212
5444034111324111
621531422500010
72122064416011
oct341653346546
986212514306
1030311042406
111194487a877
125a5b134606
132b2095b068
141677894378
15bc60b9906
hex70eadcd66

30311042406 has 32 divisors (see below), whose sum is σ = 62268248448. Its totient is φ = 9832954560.

The previous prime is 30311042389. The next prime is 30311042423. The reversal of 30311042406 is 60424011303.

It is an interprime number because it is at equal distance from previous prime (30311042389) and next prime (30311042423).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420855 + ... + 487586.

It is an arithmetic number, because the mean of its divisors is an integer number (1945882764).

Almost surely, 230311042406 is an apocalyptic number.

30311042406 is an abundant number, since it is smaller than the sum of its proper divisors (31957206042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30311042406 is a wasteful number, since it uses less digits than its factorization.

30311042406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908596.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30311042406 its reverse (60424011303), we get a palindrome (90735053709).

The spelling of 30311042406 in words is "thirty billion, three hundred eleven million, forty-two thousand, four hundred six".

Divisors: 1 2 3 6 67 83 134 166 201 249 402 498 5561 11122 16683 33366 908441 1816882 2725323 5450646 60865547 75400603 121731094 150801206 182596641 226201809 365193282 452403618 5051840401 10103680802 15155521203 30311042406