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2555287 = 717109197
BaseRepresentation
bin1001101111110110010111
311210211012021
421233312113
51123232122
6130434011
730501550
oct11576627
94724167
102555287
111495909
12a32907
136b6107
144a7327
153571c7
hex26fd97

2555287 has 16 divisors (see below), whose sum is σ = 3136320. Its totient is φ = 2032128.

The previous prime is 2555281. The next prime is 2555303. The reversal of 2555287 is 7825552.

It is not a de Polignac number, because 2555287 - 27 = 2555159 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 (2555281) 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, 12873 + ... + 13069.

It is an arithmetic number, because the mean of its divisors is an integer number (196020).

22555287 is an apocalyptic number.

2555287 is a deficient number, since it is larger than the sum of its proper divisors (581033).

2555287 is a wasteful number, since it uses less digits than its factorization.

2555287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330.

The product of its digits is 28000, while the sum is 34.

The square root of 2555287 is about 1598.5265090076. The cubic root of 2555287 is about 136.7140750325.

The spelling of 2555287 in words is "two million, five hundred fifty-five thousand, two hundred eighty-seven".

Divisors: 1 7 17 109 119 197 763 1379 1853 3349 12971 21473 23443 150311 365041 2555287