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78348 = 2236529
BaseRepresentation
bin10011001000001100
310222110210
4103020030
510001343
61402420
7444264
oct231014
9128423
1078348
1153956
1239410
132987a
14207a4
1518333
hex1320c

78348 has 12 divisors (see below), whose sum is σ = 182840. Its totient is φ = 26112.

The previous prime is 78347. The next prime is 78367. The reversal of 78348 is 84387.

Added to its reverse (84387) it gives a triangular number (162735 = T570).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×783482 = 12276818208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78341) 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, 3253 + ... + 3276.

278348 is an apocalyptic number.

It is an amenable number.

78348 is an abundant number, since it is smaller than the sum of its proper divisors (104492).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91420).

78348 is a wasteful number, since it uses less digits than its factorization.

78348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536 (or 6534 counting only the distinct ones).

The product of its digits is 5376, while the sum is 30.

The square root of 78348 is about 279.9071274548. The cubic root of 78348 is about 42.7900346555.

Adding to 78348 its reverse (84387), we get a triangular number (162735 = T570).

The spelling of 78348 in words is "seventy-eight thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 6529 13058 19587 26116 39174 78348