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67312294809 = 3142421157543
BaseRepresentation
bin111110101100001000…
…000001101110011001
320102202002221212110220
4332230020001232121
52100323421413214
650531200030253
74602030031314
oct765410015631
9212662855426
1067312294809
1126602043411
1211066902389
136469677156
143387aa397b
151b3e6a89a9
hexfac201b99

67312294809 has 8 divisors (see below), whose sum is σ = 89750926272. Its totient is φ = 44874263280.

The previous prime is 67312294793. The next prime is 67312294843. The reversal of 67312294809 is 90849221376.

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

It is not a de Polignac number, because 67312294809 - 24 = 67312294793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67312294409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348492 + ... + 506034.

It is an arithmetic number, because the mean of its divisors is an integer number (11218865784).

Almost surely, 267312294809 is an apocalyptic number.

It is an amenable number.

67312294809 is a deficient number, since it is larger than the sum of its proper divisors (22438631463).

67312294809 is a wasteful number, since it uses less digits than its factorization.

67312294809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299967.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 67312294809 in words is "sixty-seven billion, three hundred twelve million, two hundred ninety-four thousand, eight hundred nine".

Divisors: 1 3 142421 157543 427263 472629 22437431603 67312294809