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68346851 = 174678609
BaseRepresentation
bin1000001001011…
…10001111100011
311202121101020212
410010232033203
5114444044401
610440524335
71456636646
oct404561743
9152541225
1068346851
1135642001
121aa806ab
1311210231
149111a5d
156000dbb
hex412e3e3

68346851 has 8 divisors (see below), whose sum is σ = 72530640. Its totient is φ = 64181248.

The previous prime is 68346829. The next prime is 68346853. The reversal of 68346851 is 15864386.

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-68346851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68346799 and 68346808.

It is not an unprimeable number, because it can be changed into a prime (68346853) 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, 3635 + ... + 12243.

It is an arithmetic number, because the mean of its divisors is an integer number (9066330).

Almost surely, 268346851 is an apocalyptic number.

68346851 is a deficient number, since it is larger than the sum of its proper divisors (4183789).

68346851 is a wasteful number, since it uses less digits than its factorization.

68346851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9093.

The product of its digits is 138240, while the sum is 41.

The square root of 68346851 is about 8267.2154320545. The cubic root of 68346851 is about 408.8583169875.

The spelling of 68346851 in words is "sixty-eight million, three hundred forty-six thousand, eight hundred fifty-one".

Divisors: 1 17 467 7939 8609 146353 4020403 68346851