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12505632213 = 329143742899
BaseRepresentation
bin10111010010110010…
…01100110111010101
31012021112112221100110
423221121030313111
5201102420212323
65424531033233
7621621056064
oct135131146725
935245487313
1012505632213
115338115638
12251013b819
131243b3c399
14868c3c1db
154d2d4c793
hex2e964cdd5

12505632213 has 8 divisors (see below), whose sum is σ = 17249148000. Its totient is φ = 8049602288.

The previous prime is 12505632199. The next prime is 12505632233. The reversal of 12505632213 is 31223650521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12505632213 - 29 = 12505631701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505632233) 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 7 ways as a sum of consecutive naturals, for example, 71871363 + ... + 71871536.

It is an arithmetic number, because the mean of its divisors is an integer number (2156143500).

Almost surely, 212505632213 is an apocalyptic number.

It is an amenable number.

12505632213 is a deficient number, since it is larger than the sum of its proper divisors (4743515787).

12505632213 is a wasteful number, since it uses less digits than its factorization.

12505632213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143742931.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 12505632213 in words is "twelve billion, five hundred five million, six hundred thirty-two thousand, two hundred thirteen".

Divisors: 1 3 29 87 143742899 431228697 4168544071 12505632213