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12653043144 = 233775315733
BaseRepresentation
bin10111100100010111…
…00001110111001000
31012122210221012010120
423302023201313020
5201403134340034
65451314343240
7625361043420
oct136213416710
935583835116
1012653043144
115403349655
12255158ab20
1312685429a1
14880651480
154e0c69c49
hex2f22e1dc8

12653043144 has 32 divisors (see below), whose sum is σ = 36151552320. Its totient is φ = 3615155136.

The previous prime is 12653043133. The next prime is 12653043191. The reversal of 12653043144 is 44134035621.

It is a happy number.

12653043144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 37657699 + ... + 37658034.

It is an arithmetic number, because the mean of its divisors is an integer number (1129736010).

Almost surely, 212653043144 is an apocalyptic number.

12653043144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12653043144 is an abundant number, since it is smaller than the sum of its proper divisors (23498509176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12653043144 is a wasteful number, since it uses less digits than its factorization.

12653043144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75315749 (or 75315745 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 12653043144 its reverse (44134035621), we get a palindrome (56787078765).

The spelling of 12653043144 in words is "twelve billion, six hundred fifty-three million, forty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 75315733 150631466 225947199 301262932 451894398 527210131 602525864 903788796 1054420262 1581630393 1807577592 2108840524 3163260786 4217681048 6326521572 12653043144