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2108066455 = 5114121512
BaseRepresentation
bin111110110100110…
…1000101010010111
312102220200212112101
41331221220222113
513304131111310
6545103102531
7103145161225
oct17551505227
95386625471
102108066455
11991a48590
124a9ba1a47
13277983601
1415dd89b15
15c510c43a
hex7da68a97

2108066455 has 36 divisors (see below), whose sum is σ = 2847457368. Its totient is φ = 1485840000.

The previous prime is 2108066447. The next prime is 2108066459. The reversal of 2108066455 is 5546608012.

It is not a de Polignac number, because 2108066455 - 23 = 2108066447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2108066459) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13960630 + ... + 13960780.

It is an arithmetic number, because the mean of its divisors is an integer number (79096038).

Almost surely, 22108066455 is an apocalyptic number.

2108066455 is a deficient number, since it is larger than the sum of its proper divisors (739390913).

2108066455 is an equidigital number, since it uses as much as digits as its factorization.

2108066455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 2108066455 is about 45913.6848336092. The cubic root of 2108066455 is about 1282.2167104280.

The spelling of 2108066455 in words is "two billion, one hundred eight million, sixty-six thousand, four hundred fifty-five".

Divisors: 1 5 11 41 55 151 205 451 755 1661 1681 2255 6191 8305 8405 18491 22801 30955 68101 92455 114005 250811 253831 340505 934841 1254055 1269155 2792141 4674205 10283251 13960705 38328481 51416255 191642405 421613291 2108066455