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12663152020 = 2254679135319
BaseRepresentation
bin10111100101100100…
…00101110110010100
31012200111221202220101
423302302011312110
5201413231331040
65452315143444
7625543005361
oct136262056624
935614852811
1012663152020
1154090235a2
122554a44b84
13126a671c7c
14881b23468
154e1ab509a
hex2f2c85d94

12663152020 has 24 divisors (see below), whose sum is σ = 26598499200. Its totient is φ = 5064140832.

The previous prime is 12663152017. The next prime is 12663152027. The reversal of 12663152020 is 2025136621.

12663152020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12663152020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663152027) 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, 25921 + ... + 161239.

It is an arithmetic number, because the mean of its divisors is an integer number (1108270800).

Almost surely, 212663152020 is an apocalyptic number.

12663152020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12663152020 is an abundant number, since it is smaller than the sum of its proper divisors (13935347180).

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

12663152020 is a wasteful number, since it uses less digits than its factorization.

12663152020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140007 (or 140005 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 12663152020 its reverse (2025136621), we get a palindrome (14688288641).

The spelling of 12663152020 in words is "twelve billion, six hundred sixty-three million, one hundred fifty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 4679 9358 18716 23395 46790 93580 135319 270638 541276 676595 1353190 2706380 633157601 1266315202 2532630404 3165788005 6331576010 12663152020