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382280 = 23519503
BaseRepresentation
bin1011101010101001000
3201102101112
41131111020
544213110
612105452
73151343
oct1352510
9642345
10382280
11241238
12165288
13105002
149d45a
1578405
hex5d548

382280 has 32 divisors (see below), whose sum is σ = 907200. Its totient is φ = 144576.

The previous prime is 382271. The next prime is 382303. The reversal of 382280 is 82283.

It is a super-2 number, since 2×3822802 = 292275996800, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 382280.

It is an unprimeable number.

382280 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, 509 + ... + 1011.

It is an arithmetic number, because the mean of its divisors is an integer number (28350).

2382280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 382280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453600).

382280 is an abundant number, since it is smaller than the sum of its proper divisors (524920).

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

382280 is a wasteful number, since it uses less digits than its factorization.

382280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 382280 is about 618.2879588024. The cubic root of 382280 is about 72.5761387989.

The spelling of 382280 in words is "three hundred eighty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 503 760 1006 2012 2515 4024 5030 9557 10060 19114 20120 38228 47785 76456 95570 191140 382280