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2298280 = 23557457
BaseRepresentation
bin1000110001000110101000
311022202122111
420301012220
51042021110
6121132104
725351345
oct10610650
94282574
102298280
11132a806
1292a034
1362613a
1443b7cc
15305e8a
hex2311a8

2298280 has 16 divisors (see below), whose sum is σ = 5171220. Its totient is φ = 919296.

The previous prime is 2298223. The next prime is 2298293. The reversal of 2298280 is 828922.

It can be written as a sum of positive squares in 2 ways, for example, as 2292196 + 6084 = 1514^2 + 78^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28689 + ... + 28768.

22298280 is an apocalyptic number.

2298280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2298280 is an abundant number, since it is smaller than the sum of its proper divisors (2872940).

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

2298280 is a wasteful number, since it uses less digits than its factorization.

2298280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57468 (or 57464 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2298280 is about 1516.0079155466. The cubic root of 2298280 is about 131.9676994735.

It can be divided in two parts, 22 and 98280, that multiplied together give a triangular number (2162160 = T2079).

The spelling of 2298280 in words is "two million, two hundred ninety-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 57457 114914 229828 287285 459656 574570 1149140 2298280