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2668105 = 511139349
BaseRepresentation
bin1010001011011001001001
312000112221201
422023121021
51140334410
6133104201
731451506
oct12133111
95015851
102668105
111562650
12a88061
1372557b
144d64ad
1537a83a
hex28b649

2668105 has 16 divisors (see below), whose sum is σ = 3528000. Its totient is φ = 1920960.

The previous prime is 2668103. The next prime is 2668123. The reversal of 2668105 is 5018662.

It is not a de Polignac number, because 2668105 - 21 = 2668103 is a prime.

2668105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2668103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7471 + ... + 7819.

It is an arithmetic number, because the mean of its divisors is an integer number (220500).

22668105 is an apocalyptic number.

It is an amenable number.

2668105 is a deficient number, since it is larger than the sum of its proper divisors (859895).

2668105 is a wasteful number, since it uses less digits than its factorization.

2668105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2668105 is about 1633.4335003299. The cubic root of 2668105 is about 138.6971825047.

It can be divided in two parts, 266810 and 5, that added together give a triangular number (266815 = T730).

The spelling of 2668105 in words is "two million, six hundred sixty-eight thousand, one hundred five".

Divisors: 1 5 11 55 139 349 695 1529 1745 3839 7645 19195 48511 242555 533621 2668105