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67284484 = 2216821121
BaseRepresentation
bin1000000001010…
…10111000000100
311200121101221221
410000222320010
5114211100414
610402050124
71444623451
oct400527004
9150541857
1067284484
1134a86913
121a649944
1310c2a807
148d16828
155d91224
hex402ae04

67284484 has 6 divisors (see below), whose sum is σ = 117747854. Its totient is φ = 33642240.

The previous prime is 67284461. The next prime is 67284493. The reversal of 67284484 is 48448276.

It can be written as a sum of positive squares in only one way, i.e., 59721984 + 7562500 = 7728^2 + 2750^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67284484.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8410557 + ... + 8410564.

Almost surely, 267284484 is an apocalyptic number.

It is an amenable number.

67284484 is a deficient number, since it is larger than the sum of its proper divisors (50463370).

67284484 is a wasteful number, since it uses less digits than its factorization.

67284484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16821125 (or 16821123 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 67284484 is about 8202.7119905553. The cubic root of 67284484 is about 406.7288468329.

The spelling of 67284484 in words is "sixty-seven million, two hundred eighty-four thousand, four hundred eighty-four".

Divisors: 1 2 4 16821121 33642242 67284484