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2112018605 = 51037275641
BaseRepresentation
bin111110111100010…
…1101100010101101
312110012010122212022
41331320231202231
513311134043410
6545323515525
7103223601434
oct17570554255
95405118768
102112018605
119941a7924
124ab388ba5
13278738468
141606d811b
15c563d455
hex7de2d8ad

2112018605 has 16 divisors (see below), whose sum is σ = 2563002624. Its totient is φ = 1670613120.

The previous prime is 2112018577. The next prime is 2112018653. The reversal of 2112018605 is 5068102112.

It is not a de Polignac number, because 2112018605 - 26 = 2112018541 is a prime.

It is a super-2 number, since 2×21120186052 = 8921245175732292050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371585 + ... + 377225.

It is an arithmetic number, because the mean of its divisors is an integer number (160187664).

Almost surely, 22112018605 is an apocalyptic number.

It is an amenable number.

2112018605 is a deficient number, since it is larger than the sum of its proper divisors (450984019).

2112018605 is a wasteful number, since it uses less digits than its factorization.

2112018605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 2112018605 is about 45956.7035915328. The cubic root of 2112018605 is about 1283.0174994226.

The spelling of 2112018605 in words is "two billion, one hundred twelve million, eighteen thousand, six hundred five".

Divisors: 1 5 103 515 727 3635 5641 28205 74881 374405 581023 2905115 4101007 20505035 422403721 2112018605