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12108680291587 = 1125331120113019
BaseRepresentation
bin1011000000110100010110…
…0101100110010100000011
31120212120121202012221120011
42300031011211212110003
53041342034123312322
641430352333525351
72356552246156405
oct260150545462403
946776552187504
1012108680291587
113949298396500
1214368b0643857
1369aac7671029
142dc0c57d0b75
1515ee94233677
hexb0345966503

12108680291587 has 48 divisors (see below), whose sum is σ = 13615541372160. Its totient is φ = 10756550376000.

The previous prime is 12108680291549. The next prime is 12108680291597. The reversal of 12108680291587 is 78519208680121.

It is a de Polignac number, because none of the positive numbers 2k-12108680291587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12108680291597) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4010823364 + ... + 4010826382.

It is an arithmetic number, because the mean of its divisors is an integer number (283657111920).

Almost surely, 212108680291587 is an apocalyptic number.

12108680291587 is a deficient number, since it is larger than the sum of its proper divisors (1506861080573).

12108680291587 is a wasteful number, since it uses less digits than its factorization.

12108680291587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416 (or 5405 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 58.

The spelling of 12108680291587 in words is "twelve trillion, one hundred eight billion, six hundred eighty million, two hundred ninety-one thousand, five hundred eighty-seven".

Divisors: 1 11 53 121 311 583 2011 3019 3421 6413 16483 22121 33209 37631 106583 160007 181313 243331 365299 625421 938909 1172413 1760077 1994443 6071209 6879631 10327999 12896543 19360847 33147313 49762177 66783299 75675941 113607989 321774077 364620443 547383947 734616289 1888145999 3539514847 4010824873 6021223417 20769605989 38934663317 100071737947 228465665879 1100789117417 12108680291587