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2007682221 = 34779180239
BaseRepresentation
bin111011110101010…
…1100110010101101
312011220210211020210
41313222230302231
513102431312341
6531115333033
7100516005636
oct16752546255
95156724223
102007682221
11940314406
12480451179
1325cc36c5c
141508d888d
15bb3cdc16
hex77aaccad

2007682221 has 16 divisors (see below), whose sum is σ = 2768486400. Its totient is φ = 1293387888.

The previous prime is 2007682207. The next prime is 2007682231. The reversal of 2007682221 is 1222867002.

It is not a de Polignac number, because 2007682221 - 25 = 2007682189 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 (2007682231) by changing a digit.

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, 78981 + ... + 101258.

It is an arithmetic number, because the mean of its divisors is an integer number (173030400).

Almost surely, 22007682221 is an apocalyptic number.

It is an amenable number.

2007682221 is a deficient number, since it is larger than the sum of its proper divisors (760804179).

2007682221 is a wasteful number, since it uses less digits than its factorization.

2007682221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180368.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2007682221 is about 44807.1670717978. The cubic root of 2007682221 is about 1261.5321541671.

The spelling of 2007682221 in words is "two billion, seven million, six hundred eighty-two thousand, two hundred twenty-one".

Divisors: 1 3 47 79 141 237 3713 11139 180239 540717 8471233 14238881 25413699 42716643 669227407 2007682221