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2283780 = 2235172239
BaseRepresentation
bin1000101101100100000100
311022000202110
420231210010
51041040110
6120541020
725261152
oct10554404
94260673
102283780
11131a924
12921770
1361c665
144363d2
15301a20
hex22d904

2283780 has 48 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 572928.

The previous prime is 2283737. The next prime is 2283803. The reversal of 2283780 is 873822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (141120).

22283780 is an apocalyptic number.

2283780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2283780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386880).

2283780 is an abundant number, since it is smaller than the sum of its proper divisors (4489980).

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

2283780 is a wasteful number, since it uses less digits than its factorization.

2283780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2283780 is about 1511.2180517715. The cubic root of 2283780 is about 131.6895827940.

The spelling of 2283780 in words is "two million, two hundred eighty-three thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 2239 4478 6717 8956 11195 13434 22390 26868 33585 38063 44780 67170 76126 114189 134340 152252 190315 228378 380630 456756 570945 761260 1141890 2283780