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12130031332 = 2221673139921
BaseRepresentation
bin10110100110000000…
…11001011011100100
31011022100210102210201
423103000121123210
5144320242000312
65323352400244
7606410364556
oct132300313344
934270712721
1012130031332
1151650a5091
1224263a6084
1311b4091643
14830dc94d6
154aeda8557
hex2d30196e4

12130031332 has 12 divisors (see below), whose sum is σ = 21228685996. Its totient is φ = 6064692480.

The previous prime is 12130031317. The next prime is 12130031339. The reversal of 12130031332 is 23313003121.

It can be written as a sum of positive squares in 2 ways, for example, as 5429626596 + 6700404736 = 73686^2 + 81856^2 .

It is not an unprimeable number, because it can be changed into a prime (12130031339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16732 + ... + 156652.

Almost surely, 212130031332 is an apocalyptic number.

It is an amenable number.

12130031332 is a deficient number, since it is larger than the sum of its proper divisors (9098654664).

12130031332 is a wasteful number, since it uses less digits than its factorization.

12130031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161598 (or 161596 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12130031332 its reverse (23313003121), we get a palindrome (35443034453).

The spelling of 12130031332 in words is "twelve billion, one hundred thirty million, thirty-one thousand, three hundred thirty-two".

Divisors: 1 2 4 21673 43346 86692 139921 279842 559684 3032507833 6065015666 12130031332