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342380 = 225171953
BaseRepresentation
bin1010011100101101100
3122101122202
41103211230
541424010
611201032
72624123
oct1234554
9571582
10342380
11214265
12146178
13bcabc
148caba
156b6a5
hex5396c

342380 has 48 divisors (see below), whose sum is σ = 816480. Its totient is φ = 119808.

The previous prime is 342379. The next prime is 342389. The reversal of 342380 is 83243.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (342389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6434 + ... + 6486.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2342380 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 342380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408240).

342380 is an abundant number, since it is smaller than the sum of its proper divisors (474100).

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

342380 is a wasteful number, since it uses less digits than its factorization.

342380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 342380 is about 585.1324636354. The cubic root of 342380 is about 69.9577976910.

The spelling of 342380 in words is "three hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 19 20 34 38 53 68 76 85 95 106 170 190 212 265 323 340 380 530 646 901 1007 1060 1292 1615 1802 2014 3230 3604 4028 4505 5035 6460 9010 10070 17119 18020 20140 34238 68476 85595 171190 342380