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283380 = 22354723
BaseRepresentation
bin1000101001011110100
3112101201120
41011023310
533032010
610023540
72260116
oct1051364
9471646
10283380
111839a9
12117bb0
139bca6
14753b6
1558e70
hex452f4

283380 has 24 divisors (see below), whose sum is σ = 793632. Its totient is φ = 75552.

The previous prime is 283369. The next prime is 283397. The reversal of 283380 is 83382.

It is a super-3 number, since 3×2833803 = 68269833331416000, which contains 333 as substring.

It is a d-powerful number, because it can be written as 214 + 84 + 33 + 36 + 86 + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 283380.

It is a congruent number.

It is an unprimeable number.

283380 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (33068).

2283380 is an apocalyptic number.

283380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283380 is an abundant number, since it is smaller than the sum of its proper divisors (510252).

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

283380 is a wasteful number, since it uses less digits than its factorization.

283380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735 (or 4733 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 283380 is about 532.3344813179. The cubic root of 283380 is about 65.6835169667.

The spelling of 283380 in words is "two hundred eighty-three thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4723 9446 14169 18892 23615 28338 47230 56676 70845 94460 141690 283380