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60080661 = 321312389
BaseRepresentation
bin1110010100110…
…0001000010101
311012001102011200
43211030020111
5110340040121
65543423113
71326451164
oct345141025
9135042150
1060080661
1130a06543
1218154a99
13c5a78b4
147d9d3db
15541ba26
hex394c215

60080661 has 18 divisors (see below), whose sum is σ = 87675510. Its totient is φ = 39645840.

The previous prime is 60080653. The next prime is 60080731. The reversal of 60080661 is 16608006.

It can be written as a sum of positive squares in only one way, i.e., 44635761 + 15444900 = 6681^2 + 3930^2 .

It is not a de Polignac number, because 60080661 - 23 = 60080653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60080561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 154255 + ... + 154643.

Almost surely, 260080661 is an apocalyptic number.

It is an amenable number.

60080661 is a deficient number, since it is larger than the sum of its proper divisors (27594849).

60080661 is a wasteful number, since it uses less digits than its factorization.

60080661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 60080661 is about 7751.1715888632. The cubic root of 60080661 is about 391.6621173054.

Adding to 60080661 its reverse (16608006), we get a palindrome (76688667).

The spelling of 60080661 in words is "sixty million, eighty thousand, six hundred sixty-one".

Divisors: 1 3 9 131 389 393 1167 1179 3501 17161 50959 51483 152877 154449 458631 6675629 20026887 60080661