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67712562053 = 255887264619
BaseRepresentation
bin111111000011111110…
…111011001110000101
320110210000010112220122
4333003332323032011
52102133403441203
651035015111325
74614660165233
oct770376731605
9213700115818
1067712562053
1126797a81094
1211158972545
136501580286
1433c4cd7953
151b648c1538
hexfc3fbb385

67712562053 has 4 divisors (see below), whose sum is σ = 67713082560. Its totient is φ = 67712041548.

The previous prime is 67712561963. The next prime is 67712562077. The reversal of 67712562053 is 35026521776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 67712562053 - 226 = 67645453189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67712561995 and 67712562013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67712564053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123578 + ... + 388196.

It is an arithmetic number, because the mean of its divisors is an integer number (16928270640).

Almost surely, 267712562053 is an apocalyptic number.

It is an amenable number.

67712562053 is a deficient number, since it is larger than the sum of its proper divisors (520507).

67712562053 is a wasteful number, since it uses less digits than its factorization.

67712562053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520506.

The product of its (nonzero) digits is 529200, while the sum is 44.

The spelling of 67712562053 in words is "sixty-seven billion, seven hundred twelve million, five hundred sixty-two thousand, fifty-three".

Divisors: 1 255887 264619 67712562053