Search a number
-
+
2270280 = 233518919
BaseRepresentation
bin1000101010010001001000
311021100020110
420222101020
51040122110
6120354320
725203615
oct10522110
94240213
102270280
111310771
129159a0
1361647c
1443150c
152eca20
hex22a448

2270280 has 32 divisors (see below), whose sum is σ = 6811200. Its totient is φ = 605376.

The previous prime is 2270269. The next prime is 2270297. The reversal of 2270280 is 820722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9340 + ... + 9579.

It is an arithmetic number, because the mean of its divisors is an integer number (212850).

22270280 is an apocalyptic number.

2270280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2270280 is an abundant number, since it is smaller than the sum of its proper divisors (4540920).

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

2270280 is a wasteful number, since it uses less digits than its factorization.

2270280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18933 (or 18929 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2270280 is about 1506.7448357303. The cubic root of 2270280 is about 131.4295863636.

The spelling of 2270280 in words is "two million, two hundred seventy thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 18919 37838 56757 75676 94595 113514 151352 189190 227028 283785 378380 454056 567570 756760 1135140 2270280