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67677069 = 3191187317
BaseRepresentation
bin1000000100010…
…10101110001101
311201100100111010
410002022232031
5114311131234
610414315433
71451150145
oct402125615
9151310433
1067677069
1135224869
121a7b8b79
1311037405
148db9925
155e1c6e9
hex408ab8d

67677069 has 8 divisors (see below), whose sum is σ = 94985440. Its totient is φ = 42743376.

The previous prime is 67677067. The next prime is 67677079. The reversal of 67677069 is 96077676.

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

It is not a de Polignac number, because 67677069 - 21 = 67677067 is a prime.

It is a super-2 number, since 2×676770692 = 9160371336861522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67677067) 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 7 ways as a sum of consecutive naturals, for example, 593602 + ... + 593715.

It is an arithmetic number, because the mean of its divisors is an integer number (11873180).

Almost surely, 267677069 is an apocalyptic number.

It is an amenable number.

67677069 is a deficient number, since it is larger than the sum of its proper divisors (27308371).

67677069 is a wasteful number, since it uses less digits than its factorization.

67677069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187339.

The product of its (nonzero) digits is 666792, while the sum is 48.

The square root of 67677069 is about 8226.6073809317. The cubic root of 67677069 is about 407.5183606717.

The spelling of 67677069 in words is "sixty-seven million, six hundred seventy-seven thousand, sixty-nine".

Divisors: 1 3 19 57 1187317 3561951 22559023 67677069