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12608541690987 = 311383997590133
BaseRepresentation
bin1011011101111010011110…
…1001100000110001101011
31122122100211221122000112010
42313132213221200301223
53123034243133102422
642452141210251003
72440636263024504
oct267364751406153
948570757560463
1012608541690987
114021286098250
1214b7753126a63
13705c98b816c8
14318384455bab
1516ce9cad9b0c
hexb77a7a60c6b

12608541690987 has 16 divisors (see below), whose sum is σ = 18387581349888. Its totient is φ = 7621588608480.

The previous prime is 12608541690971. The next prime is 12608541691001. The reversal of 12608541690987 is 78909614580621.

It is not a de Polignac number, because 12608541690987 - 24 = 12608541690971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12608541690917) 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, 498782428 + ... + 498807705.

It is an arithmetic number, because the mean of its divisors is an integer number (1149223834368).

Almost surely, 212608541690987 is an apocalyptic number.

12608541690987 is a deficient number, since it is larger than the sum of its proper divisors (5779039658901).

12608541690987 is a wasteful number, since it uses less digits than its factorization.

12608541690987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997590530.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 12608541690987 in words is "twelve trillion, six hundred eight billion, five hundred forty-one million, six hundred ninety thousand, nine hundred eighty-seven".

Divisors: 1 3 11 33 383 1149 4213 12639 997590133 2992770399 10973491463 32920474389 382077020939 1146231062817 4202847230329 12608541690987