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27680682 = 2319242813
BaseRepresentation
bin110100110010…
…1111110101010
31221002022202110
41221211332222
524041240212
62425143150
7454165461
oct151457652
957068673
1027680682
11146969a7
12932aab6
135972403
1439679d8
15266ba3c
hex1a65faa

27680682 has 16 divisors (see below), whose sum is σ = 58275360. Its totient is φ = 8741232.

The previous prime is 27680671. The next prime is 27680683. The reversal of 27680682 is 28608672.

It is a self number, because there is not a number n which added to its sum of digits gives 27680682.

It is not an unprimeable number, because it can be changed into a prime (27680683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121293 + ... + 121520.

It is an arithmetic number, because the mean of its divisors is an integer number (3642210).

Almost surely, 227680682 is an apocalyptic number.

27680682 is an abundant number, since it is smaller than the sum of its proper divisors (30594678).

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

27680682 is a wasteful number, since it uses less digits than its factorization.

27680682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242837.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 27680682 is about 5261.2433891619. The cubic root of 27680682 is about 302.5001507182.

The spelling of 27680682 in words is "twenty-seven million, six hundred eighty thousand, six hundred eighty-two".

Divisors: 1 2 3 6 19 38 57 114 242813 485626 728439 1456878 4613447 9226894 13840341 27680682