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12442031230 = 2517199367781
BaseRepresentation
bin10111001011001101…
…00101010001111110
31012010002212200012111
423211212211101332
5200440124444410
65414335524234
7620216343346
oct134546452176
935102780174
1012442031230
115305225242
1224b298967a
131233901375
14860603d26
154cc487b8a
hex2e59a547e

12442031230 has 32 divisors (see below), whose sum is σ = 23832273600. Its totient is φ = 4660508160.

The previous prime is 12442031197. The next prime is 12442031233. The reversal of 12442031230 is 3213024421.

It is a super-2 number, since 2×124420312302 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442031233) by changing a digit.

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, 150061 + ... + 217720.

It is an arithmetic number, because the mean of its divisors is an integer number (744758550).

Almost surely, 212442031230 is an apocalyptic number.

12442031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12442031230 is a deficient number, since it is larger than the sum of its proper divisors (11390242370).

12442031230 is a wasteful number, since it uses less digits than its factorization.

12442031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368004.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12442031230 its reverse (3213024421), we get a palindrome (15655055651).

The spelling of 12442031230 in words is "twelve billion, four hundred forty-two million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 199 398 995 1990 3383 6766 16915 33830 367781 735562 1838905 3677810 6252277 12504554 31261385 62522770 73188419 146376838 365942095 731884190 1244203123 2488406246 6221015615 12442031230