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12405232025 = 523196716553
BaseRepresentation
bin10111000110110100…
…01101000110011001
31012000112122002011222
423203122031012121
5200401214411100
65410543101425
7616261506134
oct134332150631
935015562158
1012405232025
11529648047a
1224a25a1875
1312290b86a4
1485978521b
154c9119485
hex2e368d199

12405232025 has 24 divisors (see below), whose sum is σ = 15896077824. Its totient is φ = 9593539200.

The previous prime is 12405232019. The next prime is 12405232097. The reversal of 12405232025 is 52023250421.

12405232025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12405232025 - 26 = 12405231961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12405231985 and 12405232003.

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, 741149 + ... + 757701.

It is an arithmetic number, because the mean of its divisors is an integer number (662336576).

Almost surely, 212405232025 is an apocalyptic number.

It is an amenable number.

12405232025 is a deficient number, since it is larger than the sum of its proper divisors (3490845799).

12405232025 is a wasteful number, since it uses less digits than its factorization.

12405232025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561 (or 17556 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 12405232025 its reverse (52023250421), we get a palindrome (64428482446).

The spelling of 12405232025 in words is "twelve billion, four hundred five million, two hundred thirty-two thousand, twenty-five".

Divisors: 1 5 25 31 155 775 967 4835 16553 24175 29977 82765 149885 413825 513143 749425 2565715 12828575 16006751 80033755 400168775 496209281 2481046405 12405232025