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63685060 = 22517792371
BaseRepresentation
bin1111001011110…
…0000111000100
311102211112110221
43302330013010
5112300410220
610152554124
71402212505
oct362740704
9142745427
1063685060
1132a4858a
12193b2944
131026a38a
14865abac
1558ce9aa
hex3cbc1c4

63685060 has 48 divisors (see below), whose sum is σ = 143458560. Its totient is φ = 23662080.

The previous prime is 63685057. The next prime is 63685087. The reversal of 63685060 is 6058636.

63685060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25675 + ... + 28045.

It is an arithmetic number, because the mean of its divisors is an integer number (2988720).

Almost surely, 263685060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63685060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71729280).

63685060 is an abundant number, since it is smaller than the sum of its proper divisors (79773500).

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

63685060 is a wasteful number, since it uses less digits than its factorization.

63685060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 63685060 is about 7980.2919746084. The cubic root of 63685060 is about 399.3427957980.

The spelling of 63685060 in words is "sixty-three million, six hundred eighty-five thousand, sixty".

Divisors: 1 2 4 5 10 17 20 34 68 79 85 158 170 316 340 395 790 1343 1580 2371 2686 4742 5372 6715 9484 11855 13430 23710 26860 40307 47420 80614 161228 187309 201535 374618 403070 749236 806140 936545 1873090 3184253 3746180 6368506 12737012 15921265 31842530 63685060