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842280 = 23357019
BaseRepresentation
bin11001101101000101000
31120210101120
43031220220
5203423110
630015240
710105425
oct3155050
91523346
10842280
115258aa
12347520
132364ba
1417cd4c
15119870
hexcda28

842280 has 32 divisors (see below), whose sum is σ = 2527200. Its totient is φ = 224576.

The previous prime is 842279. The next prime is 842291. The reversal of 842280 is 82248.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 842280.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3390 + ... + 3629.

It is an arithmetic number, because the mean of its divisors is an integer number (78975).

2842280 is an apocalyptic number.

It is an amenable number.

842280 is an abundant number, since it is smaller than the sum of its proper divisors (1684920).

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

842280 is a wasteful number, since it uses less digits than its factorization.

842280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033 (or 7029 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 842280 is about 917.7581380734. The cubic root of 842280 is about 94.4391702809.

The spelling of 842280 in words is "eight hundred forty-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 7019 14038 21057 28076 35095 42114 56152 70190 84228 105285 140380 168456 210570 280760 421140 842280