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68563343 = 1918119937
BaseRepresentation
bin1000001011000…
…11000110001111
311210000101020002
410011203012033
5120023011333
610445314515
71461531062
oct405430617
9153011202
1068563343
113577a722
121ab65a3b
1311287934
14916a8d9
1560450e8
hex416318f

68563343 has 8 divisors (see below), whose sum is σ = 72574320. Its totient is φ = 64592640.

The previous prime is 68563333. The next prime is 68563373. The reversal of 68563343 is 34336586.

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

It is a cyclic number.

It is not a de Polignac number, because 68563343 - 28 = 68563087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68563297 and 68563306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68563303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6530 + ... + 13407.

It is an arithmetic number, because the mean of its divisors is an integer number (9071790).

Almost surely, 268563343 is an apocalyptic number.

68563343 is a deficient number, since it is larger than the sum of its proper divisors (4010977).

68563343 is a wasteful number, since it uses less digits than its factorization.

68563343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20137.

The product of its digits is 155520, while the sum is 38.

The square root of 68563343 is about 8280.2984849581. The cubic root of 68563343 is about 409.2895549037.

The spelling of 68563343 in words is "sixty-eight million, five hundred sixty-three thousand, three hundred forty-three".

Divisors: 1 19 181 3439 19937 378803 3608597 68563343