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68192242 = 283940639
BaseRepresentation
bin1000001000010…
…00011111110010
311202022112011121
410010020133302
5114424122432
610433332454
71455424126
oct404103762
9152275147
1068192242
1135546928
121aa0712a
1311187a51
1490b1586
155ec0197
hex41087f2

68192242 has 8 divisors (see below), whose sum is σ = 102412800. Its totient is φ = 34054644.

The previous prime is 68192231. The next prime is 68192251. The reversal of 68192242 is 24229186.

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

It is a junction number, because it is equal to n+sod(n) for n = 68192198 and 68192207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18642 + ... + 21997.

It is an arithmetic number, because the mean of its divisors is an integer number (12801600).

Almost surely, 268192242 is an apocalyptic number.

68192242 is a deficient number, since it is larger than the sum of its proper divisors (34220558).

68192242 is a wasteful number, since it uses less digits than its factorization.

68192242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41480.

The product of its digits is 13824, while the sum is 34.

The square root of 68192242 is about 8257.8594078611. The cubic root of 68192242 is about 408.5497882602.

The spelling of 68192242 in words is "sixty-eight million, one hundred ninety-two thousand, two hundred forty-two".

Divisors: 1 2 839 1678 40639 81278 34096121 68192242