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67973354089 = 2607172
BaseRepresentation
bin111111010011100001…
…110001001001101001
320111110011212011022221
4333103201301021221
52103202134312324
651120532514041
74624304655664
oct772341611151
9214404764287
1067973354089
1126911205aa3
121121017b921
136543600ba4
14340b7c26db
151b7c7380e4
hexfd3871269

67973354089 has 3 divisors (see below), whose sum is σ = 67973614807. Its totient is φ = 67973093372.

The previous prime is 67973354087. The next prime is 67973354117. The reversal of 67973354089 is 98045337976.

The square root of 67973354089 is 260717.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 13454840025 + 54518514064 = 115995^2 + 233492^2 .

It is not a de Polignac number, because 67973354089 - 21 = 67973354087 is a prime.

It is a super-2 number, since 2×679733540892 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67973354087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 130359 + ... + 391075.

Almost surely, 267973354089 is an apocalyptic number.

67973354089 is the 260717-th square number.

67973354089 is the 130359-th centered octagonal number.

It is an amenable number.

67973354089 is a deficient number, since it is larger than the sum of its proper divisors (260718).

67973354089 is an frugal number, since it uses more digits than its factorization.

67973354089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521434 (or 260717 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 67973354089 in words is "sixty-seven billion, nine hundred seventy-three million, three hundred fifty-four thousand, eighty-nine".

Divisors: 1 260717 67973354089