Search a number
-
+
12311413345 = 5711171881041
BaseRepresentation
bin10110111011101000…
…10100001001100001
31011210000002121011001
423131310110021201
5200203210211340
65353352152001
7614042200240
oct133564241141
934700077131
1012311413345
115248521080
122477098601
13121282a58a
1484b122957
154c0c8629a
hex2ddd14261

12311413345 has 32 divisors (see below), whose sum is σ = 19502643456. Its totient is φ = 7223193600.

The previous prime is 12311413333. The next prime is 12311413351. The reversal of 12311413345 is 54331411321.

It is not a de Polignac number, because 12311413345 - 27 = 12311413217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933976 + ... + 947065.

It is an arithmetic number, because the mean of its divisors is an integer number (609457608).

Almost surely, 212311413345 is an apocalyptic number.

It is an amenable number.

12311413345 is a deficient number, since it is larger than the sum of its proper divisors (7191230111).

12311413345 is a wasteful number, since it uses less digits than its factorization.

12311413345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881081.

The product of its digits is 4320, while the sum is 28.

Adding to 12311413345 its reverse (54331411321), we get a palindrome (66642824666).

The spelling of 12311413345 in words is "twelve billion, three hundred eleven million, four hundred thirteen thousand, three hundred forty-five".

Divisors: 1 5 7 11 17 35 55 77 85 119 187 385 595 935 1309 6545 1881041 9405205 13167287 20691451 31977697 65836435 103457255 144840157 159888485 223843879 351754667 724200785 1119219395 1758773335 2462282669 12311413345