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12423011452 = 2219316351679
BaseRepresentation
bin10111001000111100…
…00001110001111100
31012001210002100222021
423210132001301330
5200420242331302
65412420125524
7616565566165
oct134436016174
935053070867
1012423011452
1152a5514415
1224a85368a4
13122c9a2167
1485bc9276c
154ca97c437
hex2e4781c7c

12423011452 has 24 divisors (see below), whose sum is σ = 22892172800. Its totient is φ = 5882610096.

The previous prime is 12423011423. The next prime is 12423011453. The reversal of 12423011452 is 25411032421.

12423011452 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 not an unprimeable number, because it can be changed into a prime (12423011453) 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 7 ways as a sum of consecutive naturals, for example, 214549 + ... + 266227.

Almost surely, 212423011452 is an apocalyptic number.

It is an amenable number.

12423011452 is a deficient number, since it is larger than the sum of its proper divisors (10469161348).

12423011452 is a wasteful number, since it uses less digits than its factorization.

12423011452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54865 (or 54863 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12423011452 its reverse (25411032421), we get a palindrome (37834043873).

The spelling of 12423011452 in words is "twelve billion, four hundred twenty-three million, eleven thousand, four hundred fifty-two".

Divisors: 1 2 4 19 38 76 3163 6326 12652 51679 60097 103358 120194 206716 240388 981901 1963802 3927604 163460677 326921354 653842708 3105752863 6211505726 12423011452