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342280 = 23543199
BaseRepresentation
bin1010011100100001000
3122101112001
41103210020
541423110
611200344
72623621
oct1234410
9571461
10342280
11214184
121460b4
13bca43
148ca48
156b63a
hex53908

342280 has 32 divisors (see below), whose sum is σ = 792000. Its totient is φ = 133056.

The previous prime is 342257. The next prime is 342281. The reversal of 342280 is 82243.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (342281) by changing a digit.

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, 1621 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (24750).

2342280 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 342280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396000).

342280 is an abundant number, since it is smaller than the sum of its proper divisors (449720).

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

342280 is a wasteful number, since it uses less digits than its factorization.

342280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 342280 is about 585.0470066584. The cubic root of 342280 is about 69.9509860967.

The spelling of 342280 in words is "three hundred forty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 199 215 344 398 430 796 860 995 1592 1720 1990 3980 7960 8557 17114 34228 42785 68456 85570 171140 342280