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12451213030 = 258916385829
BaseRepresentation
bin10111001100010011…
…00110111011100110
31012010202011011021011
423212021212323212
5201000002304110
65415304412434
7620360364424
oct134611467346
935122134234
1012451213030
11530a426703
1224b5a7711a
131235797699
14861914114
154cd19d48a
hex2e6266ee6

12451213030 has 32 divisors (see below), whose sum is σ = 22803314400. Its totient is φ = 4894255872.

The previous prime is 12451213013. The next prime is 12451213051. The reversal of 12451213030 is 3031215421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12451212992 and 12451213010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102156 + ... + 187984.

It is an arithmetic number, because the mean of its divisors is an integer number (712603575).

Almost surely, 212451213030 is an apocalyptic number.

12451213030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12451213030 is a deficient number, since it is larger than the sum of its proper divisors (10352101370).

12451213030 is a wasteful number, since it uses less digits than its factorization.

12451213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86088.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12451213030 its reverse (3031215421), we get a palindrome (15482428451).

The spelling of 12451213030 in words is "twelve billion, four hundred fifty-one million, two hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 89 163 178 326 445 815 890 1630 14507 29014 72535 85829 145070 171658 429145 858290 7638781 13990127 15277562 27980254 38193905 69950635 76387810 139901270 1245121303 2490242606 6225606515 12451213030