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13131220002232 = 2312527131029177
BaseRepresentation
bin1011111100010101100110…
…1101000010010110111000
31201111022222022002022100011
42333011121231002112320
53210120214310032412
643532222120351304
72523461605252513
oct277053155022670
951438868068304
1013131220002232
114202a123a7632
121580b03015534
13743365538857
143357a9549d7a
1517b88e6877a7
hexbf159b425b8

13131220002232 has 16 divisors (see below), whose sum is σ = 24623003129760. Its totient is φ = 6565085834304.

The previous prime is 13131220002163. The next prime is 13131220002233. The reversal of 13131220002232 is 23220002213131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131220002233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65414373 + ... + 65614804.

It is an arithmetic number, because the mean of its divisors is an integer number (1538937695610).

Almost surely, 213131220002232 is an apocalyptic number.

It is an amenable number.

13131220002232 is a deficient number, since it is larger than the sum of its proper divisors (11491783127528).

13131220002232 is a wasteful number, since it uses less digits than its factorization.

13131220002232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131041710 (or 131041706 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13131220002232 its reverse (23220002213131), we get a palindrome (36351222215363).

The spelling of 13131220002232 in words is "thirteen trillion, one hundred thirty-one billion, two hundred twenty million, two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 12527 25054 50108 100216 131029177 262058354 524116708 1048233416 1641402500279 3282805000558 6565610001116 13131220002232