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30311210404 = 2227292776769
BaseRepresentation
bin11100001110101100…
…000101110110100100
32220020102220000210101
4130032230011312210
5444034132213104
621531430233444
72122066015546
oct341654056644
986212800711
1030311210404
1111944985012
125a5b1b5884
132b209b9677
1416778d9696
15bc60ee5a4
hex70eb05da4

30311210404 has 12 divisors (see below), whose sum is σ = 53064074700. Its totient is φ = 15150046208.

The previous prime is 30311210401. The next prime is 30311210483. The reversal of 30311210404 is 40401211303.

It can be written as a sum of positive squares in 2 ways, for example, as 25632650404 + 4678560000 = 160102^2 + 68400^2 .

It is not an unprimeable number, because it can be changed into a prime (30311210401) 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 3 ways as a sum of consecutive naturals, for example, 1377469 + ... + 1399300.

It is an arithmetic number, because the mean of its divisors is an integer number (4422006225).

Almost surely, 230311210404 is an apocalyptic number.

It is an amenable number.

30311210404 is a deficient number, since it is larger than the sum of its proper divisors (22752864296).

30311210404 is a wasteful number, since it uses less digits than its factorization.

30311210404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779502 (or 2779500 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30311210404 its reverse (40401211303), we get a palindrome (70712421707).

The spelling of 30311210404 in words is "thirty billion, three hundred eleven million, two hundred ten thousand, four hundred four".

Divisors: 1 2 4 2729 5458 10916 2776769 5553538 11107076 7577802601 15155605202 30311210404