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343808 = 281779
BaseRepresentation
bin1010011111100000000
3122110121122
41103330000
542000213
611211412
72631233
oct1237400
9573548
10343808
11215343
12146b68
13c064a
148d41a
156bd08
hex53f00

343808 has 36 divisors (see below), whose sum is σ = 735840. Its totient is φ = 159744.

The previous prime is 343801. The next prime is 343813. The reversal of 343808 is 808343.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4313 + ... + 4391.

It is an arithmetic number, because the mean of its divisors is an integer number (20440).

2343808 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 343808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367920).

343808 is an abundant number, since it is smaller than the sum of its proper divisors (392032).

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

343808 is an equidigital number, since it uses as much as digits as its factorization.

343808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 343808 is about 586.3514304579. The cubic root of 343808 is about 70.0549228819.

The spelling of 343808 in words is "three hundred forty-three thousand, eight hundred eight".

Divisors: 1 2 4 8 16 17 32 34 64 68 79 128 136 158 256 272 316 544 632 1088 1264 1343 2176 2528 2686 4352 5056 5372 10112 10744 20224 21488 42976 85952 171904 343808