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67660674 = 2311276779
BaseRepresentation
bin1000000100001…
…10101110000010
311201022111222220
410002012232002
5114310120144
610414111510
71451051304
oct402065602
9151274886
1067660674
1135213514
121a7ab596
131102cb03
148db3974
155e17919
hex4086b82

67660674 has 8 divisors (see below), whose sum is σ = 135321360. Its totient is φ = 22553556.

The previous prime is 67660673. The next prime is 67660699. The reversal of 67660674 is 47606676.

It is a sphenic number, since it is the product of 3 distinct primes.

67660674 is an admirable number.

It is a super-2 number, since 2×676606742 = 9155933612268552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67660673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5638384 + ... + 5638395.

It is an arithmetic number, because the mean of its divisors is an integer number (16915170).

Almost surely, 267660674 is an apocalyptic number.

67660674 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

67660674 is a wasteful number, since it uses less digits than its factorization.

67660674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11276784.

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

The square root of 67660674 is about 8225.6108587752. The cubic root of 67660674 is about 407.4854504447.

The spelling of 67660674 in words is "sixty-seven million, six hundred sixty thousand, six hundred seventy-four".

Divisors: 1 2 3 6 11276779 22553558 33830337 67660674