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12130243542 = 2321098397369
BaseRepresentation
bin10110100110000010…
…01101001111010110
31011022101012012220100
423103001031033112
5144320320243132
65323401114530
7606412240344
oct132301151726
934271165810
1012130243542
11516522a56a
122426488a46
1311b4137101
14831042994
154aedeb37c
hex2d304d3d6

12130243542 has 48 divisors (see below), whose sum is σ = 26558532000. Its totient is φ = 4001000832.

The previous prime is 12130243483. The next prime is 12130243637. The reversal of 12130243542 is 24534203121.

12130243542 is a `hidden beast` number, since 1 + 2 + 1 + 302 + 4 + 354 + 2 = 666.

12130243542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1642434 + ... + 1649802.

It is an arithmetic number, because the mean of its divisors is an integer number (553302750).

Almost surely, 212130243542 is an apocalyptic number.

12130243542 is an abundant number, since it is smaller than the sum of its proper divisors (14428288458).

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

12130243542 is a wasteful number, since it uses less digits than its factorization.

12130243542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325 (or 8322 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12130243542 its reverse (24534203121), we get a palindrome (36664446663).

The spelling of 12130243542 in words is "twelve billion, one hundred thirty million, two hundred forty-three thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 109 218 327 654 839 981 1678 1962 2517 5034 7369 7551 14738 15102 22107 44214 66321 91451 132642 182902 274353 548706 803221 823059 1606442 1646118 2409663 4819326 6182591 7228989 12365182 14457978 18547773 37095546 55643319 111286638 673902419 1347804838 2021707257 4043414514 6065121771 12130243542