Search a number
-
+
12305312025 = 352164070827
BaseRepresentation
bin10110111010111010…
…00010100100011001
31011202120121121201020
423131131002210121
5200200124441100
65353013313053
7613636266156
oct133535024431
934676547636
1012305312025
115245034066
122475035789
1312114a2426
1484a3b522d
154c047d5a0
hex2dd742919

12305312025 has 12 divisors (see below), whose sum is σ = 20344782672. Its totient is φ = 6562833040.

The previous prime is 12305312017. The next prime is 12305312029. The reversal of 12305312025 is 52021350321.

It is a happy number.

12305312025 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 12305312025 - 23 = 12305312017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12305311986 and 12305312004.

It is not an unprimeable number, because it can be changed into a prime (12305312029) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 82035339 + ... + 82035488.

It is an arithmetic number, because the mean of its divisors is an integer number (1695398556).

Almost surely, 212305312025 is an apocalyptic number.

12305312025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12305312025 is a deficient number, since it is larger than the sum of its proper divisors (8039470647).

12305312025 is a wasteful number, since it uses less digits than its factorization.

12305312025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164070840 (or 164070835 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 12305312025 its reverse (52021350321), we get a palindrome (64326662346).

The spelling of 12305312025 in words is "twelve billion, three hundred five million, three hundred twelve thousand, twenty-five".

Divisors: 1 3 5 15 25 75 164070827 492212481 820354135 2461062405 4101770675 12305312025