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1968086055 = 351337272777
BaseRepresentation
bin111010101001110…
…1001110000100111
312002011022010112010
41311103221300213
513012312223210
6523142525303
766525312135
oct16523516047
95064263463
101968086055
1191aa2a201
1246b136833
13254982180
1414954c755
15b7bab920
hex754e9c27

1968086055 has 32 divisors (see below), whose sum is σ = 3482829504. Its totient is φ = 942713856.

The previous prime is 1968086053. The next prime is 1968086077. The reversal of 1968086055 is 5506808691.

It is not a de Polignac number, because 1968086055 - 21 = 1968086053 is a prime.

It is a super-3 number, since 3×19680860553 (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1968085995 and 1968086013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968086051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129174 + ... + 143603.

It is an arithmetic number, because the mean of its divisors is an integer number (108838422).

Almost surely, 21968086055 is an apocalyptic number.

1968086055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1968086055 is a deficient number, since it is larger than the sum of its proper divisors (1514743449).

1968086055 is a wasteful number, since it uses less digits than its factorization.

1968086055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272835.

The product of its (nonzero) digits is 518400, while the sum is 48.

The square root of 1968086055 is about 44363.1159297901. The cubic root of 1968086055 is about 1253.1835767213.

The spelling of 1968086055 in words is "one billion, nine hundred sixty-eight million, eighty-six thousand, fifty-five".

Divisors: 1 3 5 13 15 37 39 65 111 185 195 481 555 1443 2405 7215 272777 818331 1363885 3546101 4091655 10092749 10638303 17730505 30278247 50463745 53191515 131205737 151391235 393617211 656028685 1968086055