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67804117 = 298532741
BaseRepresentation
bin1000000101010…
…01101111010101
311201120210202121
410002221233111
5114324212432
610421135541
71452216433
oct402515725
9151523677
1067804117
1135301267
121a85a5b1
13110801a4
14900dd53
155e45197
hex40a9bd5

67804117 has 8 divisors (see below), whose sum is σ = 70250040. Its totient is φ = 65365440.

The previous prime is 67804097. The next prime is 67804129. The reversal of 67804117 is 71140876.

It can be written as a sum of positive squares in 4 ways, for example, as 54756 + 67749361 = 234^2 + 8231^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-67804117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67804417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23367 + ... + 26107.

It is an arithmetic number, because the mean of its divisors is an integer number (8781255).

Almost surely, 267804117 is an apocalyptic number.

It is an amenable number.

67804117 is a deficient number, since it is larger than the sum of its proper divisors (2445923).

67804117 is a wasteful number, since it uses less digits than its factorization.

67804117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 67804117 is about 8234.3255340070. The cubic root of 67804117 is about 407.7732083331.

The spelling of 67804117 in words is "sixty-seven million, eight hundred four thousand, one hundred seventeen".

Divisors: 1 29 853 2741 24737 79489 2338073 67804117