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12155068508 = 22117123316699
BaseRepresentation
bin10110101000111111…
…11010000001011100
31011101002220110100112
423110133322001130
5144343144143013
65330045145152
7610133243342
oct132437720134
934332813315
1012155068508
115178245970
12243285b1b8
1311b931973b
14834465992
154b21a1ba8
hex2d47fa05c

12155068508 has 48 divisors (see below), whose sum is σ = 23634374400. Its totient is φ = 5423510400.

The previous prime is 12155068507. The next prime is 12155068537. The reversal of 12155068508 is 80586055121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155068501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719543 + ... + 736241.

It is an arithmetic number, because the mean of its divisors is an integer number (492382800).

Almost surely, 212155068508 is an apocalyptic number.

It is an amenable number.

12155068508 is a deficient number, since it is larger than the sum of its proper divisors (11479305892).

12155068508 is a wasteful number, since it uses less digits than its factorization.

12155068508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17018 (or 17016 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 41.

The spelling of 12155068508 in words is "twelve billion, one hundred fifty-five million, sixty-eight thousand, five hundred eight".

Divisors: 1 2 4 11 22 44 71 142 233 284 466 781 932 1562 2563 3124 5126 10252 16543 16699 33086 33398 66172 66796 181973 183689 363946 367378 727892 734756 1185629 2371258 3890867 4742516 7781734 13041919 15563468 26083838 42799537 52167676 85599074 171198148 276251557 552503114 1105006228 3038767127 6077534254 12155068508