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80342 = 2172139
BaseRepresentation
bin10011100111010110
311002012122
4103213112
510032332
61415542
7453143
oct234726
9132178
1080342
11553a9
123a5b2
132a752
14213ca
1518c12
hex139d6

80342 has 12 divisors (see below), whose sum is σ = 128940. Its totient is φ = 37536.

The previous prime is 80341. The next prime is 80347. The reversal of 80342 is 24308.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 80342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (10745).

280342 is an apocalyptic number.

80342 is a deficient number, since it is larger than the sum of its proper divisors (48598).

80342 is a wasteful number, since it uses less digits than its factorization.

80342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 80342 is about 283.4466440091. The cubic root of 80342 is about 43.1500078995.

The spelling of 80342 in words is "eighty thousand, three hundred forty-two".

Divisors: 1 2 17 34 139 278 289 578 2363 4726 40171 80342