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67076664 = 2339728813
BaseRepresentation
bin1111111111100…
…0001000111000
311200012211212220
43333320020320
5114132423124
610353404040
71443066534
oct377701070
9150184786
1067076664
1134954766
121a569620
1310b87045
148ca0bc4
155d4e879
hex3ff8238

67076664 has 32 divisors (see below), whose sum is σ = 169426320. Its totient is φ = 22127616.

The previous prime is 67076663. The next prime is 67076677. The reversal of 67076664 is 46667076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67076663) 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, 12079 + ... + 16734.

Almost surely, 267076664 is an apocalyptic number.

It is an amenable number.

67076664 is an abundant number, since it is smaller than the sum of its proper divisors (102349656).

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

67076664 is a wasteful number, since it uses less digits than its factorization.

67076664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28919 (or 28915 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 67076664 is about 8190.0344321621. The cubic root of 67076664 is about 406.3096636947.

The spelling of 67076664 in words is "sixty-seven million, seventy-six thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 97 194 291 388 582 776 1164 2328 28813 57626 86439 115252 172878 230504 345756 691512 2794861 5589722 8384583 11179444 16769166 22358888 33538332 67076664