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2558290 = 257223227
BaseRepresentation
bin1001110000100101010010
311210222022111
421300211102
51123331130
6130455534
730513400
oct11604522
94728274
102558290
111498099
12a345aa
136b75a7
144a8470
1535802a
hex270952

2558290 has 48 divisors (see below), whose sum is σ = 5614272. Its totient is φ = 835296.

The previous prime is 2558287. The next prime is 2558317. The reversal of 2558290 is 928552.

It is a happy number.

2558290 is nontrivially palindromic in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11157 + ... + 11383.

It is an arithmetic number, because the mean of its divisors is an integer number (116964).

22558290 is an apocalyptic number.

2558290 is an abundant number, since it is smaller than the sum of its proper divisors (3055982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2558290 is a wasteful number, since it uses less digits than its factorization.

2558290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2558290 is about 1599.4655357337. The cubic root of 2558290 is about 136.7676100032.

The spelling of 2558290 in words is "two million, five hundred fifty-eight thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 23 35 46 49 70 98 115 161 227 230 245 322 454 490 805 1127 1135 1589 1610 2254 2270 3178 5221 5635 7945 10442 11123 11270 15890 22246 26105 36547 52210 55615 73094 111230 182735 255829 365470 511658 1279145 2558290