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12152053011555 = 33590015207493
BaseRepresentation
bin1011000011010101111011…
…0011011001010001100011
31121000201120110122102002000
42300311132303121101203
53043044401032332210
641502324233455043
72362646126205132
oct260653663312143
947021513572060
1012152053011555
113965725137a16
121443195b71483
136a1c1a3b7482
1430023bca7919
15161181d84ac0
hexb0d5ecd9463

12152053011555 has 16 divisors (see below), whose sum is σ = 21603649798560. Its totient is φ = 6481094939424.

The previous prime is 12152053011541. The next prime is 12152053011587. The reversal of 12152053011555 is 55511035025121.

12152053011555 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 2 + 0 + 530 + 115 + 5 + 5 = 666.

It is not a de Polignac number, because 12152053011555 - 214 = 12152052995171 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45007603612 + ... + 45007603881.

It is an arithmetic number, because the mean of its divisors is an integer number (1350228112410).

Almost surely, 212152053011555 is an apocalyptic number.

12152053011555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12152053011555 is a deficient number, since it is larger than the sum of its proper divisors (9451596787005).

12152053011555 is an equidigital number, since it uses as much as digits as its factorization.

12152053011555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90015207507 (or 90015207501 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

Adding to 12152053011555 its reverse (55511035025121), we get a palindrome (67663088036676).

The spelling of 12152053011555 in words is "twelve trillion, one hundred fifty-two billion, fifty-three million, eleven thousand, five hundred fifty-five".

Divisors: 1 3 5 9 15 27 45 135 90015207493 270045622479 450076037465 810136867437 1350228112395 2430410602311 4050684337185 12152053011555