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2066850885 = 351198312743
BaseRepresentation
bin111101100110001…
…1010010001000101
312100001010220101210
41323030122101011
513213103212020
6541031442033
7102134641221
oct17314322105
95301126353
102066850885
11970757730
12498226319
1326c2826b8
141586db781
15c16ba3e0
hex7b31a445

2066850885 has 32 divisors (see below), whose sum is σ = 3611547648. Its totient is φ = 1001011520.

The previous prime is 2066850883. The next prime is 2066850893. The reversal of 2066850885 is 5880586602.

It is not a de Polignac number, because 2066850885 - 21 = 2066850883 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066850881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155824 + ... + 168566.

It is an arithmetic number, because the mean of its divisors is an integer number (112860864).

Almost surely, 22066850885 is an apocalyptic number.

It is an amenable number.

2066850885 is a deficient number, since it is larger than the sum of its proper divisors (1544696763).

2066850885 is a wasteful number, since it uses less digits than its factorization.

2066850885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13745.

The product of its (nonzero) digits is 921600, while the sum is 48.

The square root of 2066850885 is about 45462.6317430041. The cubic root of 2066850885 is about 1273.8052907173.

The spelling of 2066850885 in words is "two billion, sixty-six million, eight hundred fifty thousand, eight hundred eighty-five".

Divisors: 1 3 5 11 15 33 55 165 983 2949 4915 10813 12743 14745 32439 38229 54065 63715 140173 162195 191145 420519 700865 2102595 12526369 37579107 62631845 137790059 187895535 413370177 688950295 2066850885