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348836238 = 232194632203
BaseRepresentation
bin10100110010101…
…101000110001110
3220022101201100200
4110302231012032
51203300224423
654340434330
711434026162
oct2462550616
9808351320
10348836238
111699aa913
12989a89a6
135736959a
1434486ca2
1520958d43
hex14cad18e

348836238 has 48 divisors (see below), whose sum is σ = 797671680. Its totient is φ = 109870992.

The previous prime is 348836233. The next prime is 348836251. The reversal of 348836238 is 832638843.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 348836193 and 348836202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348836231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157245 + ... + 159447.

It is an arithmetic number, because the mean of its divisors is an integer number (16618160).

Almost surely, 2348836238 is an apocalyptic number.

348836238 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 348836238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398835840).

348836238 is an abundant number, since it is smaller than the sum of its proper divisors (448835442).

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

348836238 is a wasteful number, since it uses less digits than its factorization.

348836238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693 (or 2690 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 348836238 is about 18677.1581885468. The cubic root of 348836238 is about 703.9479222302.

The spelling of 348836238 in words is "three hundred forty-eight million, eight hundred thirty-six thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 463 926 1389 2203 2778 4167 4406 6609 8334 8797 13218 17594 19827 26391 39654 41857 52782 79173 83714 125571 158346 251142 376713 753426 1019989 2039978 3059967 6119934 9179901 18359802 19379791 38759582 58139373 116278746 174418119 348836238