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67540092 = 2235628341
BaseRepresentation
bin1000000011010…
…01010001111100
311201002101120220
410001221101330
5114242240332
610411341340
71450036614
oct401512174
9151071526
1067540092
1135140964
121a751850
1310cb9c69
148d81a44
155de1d2c
hex406947c

67540092 has 12 divisors (see below), whose sum is σ = 157593576. Its totient is φ = 22513360.

The previous prime is 67540069. The next prime is 67540093. The reversal of 67540092 is 29004576.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67540093) 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 3 ways as a sum of consecutive naturals, for example, 2814159 + ... + 2814182.

It is an arithmetic number, because the mean of its divisors is an integer number (13132798).

Almost surely, 267540092 is an apocalyptic number.

It is an amenable number.

67540092 is an abundant number, since it is smaller than the sum of its proper divisors (90053484).

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

67540092 is a wasteful number, since it uses less digits than its factorization.

67540092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5628348 (or 5628346 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 67540092 is about 8218.2779218033. The cubic root of 67540092 is about 407.2432387057.

The spelling of 67540092 in words is "sixty-seven million, five hundred forty thousand, ninety-two".

Divisors: 1 2 3 4 6 12 5628341 11256682 16885023 22513364 33770046 67540092