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78068 = 2229673
BaseRepresentation
bin10011000011110100
310222002102
4103003310
54444233
61401232
7443414
oct230364
9128072
1078068
1153721
1239218
13296c3
1420644
15181e8
hex130f4

78068 has 12 divisors (see below), whose sum is σ = 141540. Its totient is φ = 37632.

The previous prime is 78059. The next prime is 78079. The reversal of 78068 is 86087.

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 44944 = 182^2 + 212^2 .

It is a super-2 number, since 2×780682 = 12189225248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 78068.

It is a congruent number.

It is an unprimeable number.

78068 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221 + ... + 452.

It is an arithmetic number, because the mean of its divisors is an integer number (11795).

278068 is an apocalyptic number.

It is an amenable number.

78068 is a deficient number, since it is larger than the sum of its proper divisors (63472).

78068 is a wasteful number, since it uses less digits than its factorization.

78068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 78068 is about 279.4065138826. The cubic root of 78068 is about 42.7389994837.

It can be divided in two parts, 780 and 68, that added together give a palindrome (848).

The spelling of 78068 in words is "seventy-eight thousand, sixty-eight".

Divisors: 1 2 4 29 58 116 673 1346 2692 19517 39034 78068