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12876261290890 = 2523154336282401
BaseRepresentation
bin1011101101011111110011…
…1110101111001110001010
31200120221212210021211001021
42323113330332233032022
53141431040342302030
643215134530343054
72466164521051414
oct273277476571612
950527783254037
1012876261290890
1141148788a7138
12153b609a2aa8a
137252c304634a
143273003439b4
15174e1b37097a
hexbb5fcfaf38a

12876261290890 has 32 divisors (see below), whose sum is σ = 24200652393216. Its totient is φ = 4923376550400.

The previous prime is 12876261290839. The next prime is 12876261290897. The reversal of 12876261290890 is 9809216267821.

It is not an unprimeable number, because it can be changed into a prime (12876261290897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17786311 + ... + 18496090.

It is an arithmetic number, because the mean of its divisors is an integer number (756270387288).

Almost surely, 212876261290890 is an apocalyptic number.

12876261290890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12876261290890 is a deficient number, since it is larger than the sum of its proper divisors (11324391102326).

12876261290890 is a wasteful number, since it uses less digits than its factorization.

12876261290890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36283974.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 12876261290890 in words is "twelve trillion, eight hundred seventy-six billion, two hundred sixty-one million, two hundred ninety thousand, eight hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 1543 3086 7715 15430 35489 70978 177445 354890 36282401 72564802 181412005 362824010 834495223 1668990446 4172476115 8344952230 55983744743 111967489486 279918723715 559837447430 1287626129089 2575252258178 6438130645445 12876261290890