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68423323 = 371849279
BaseRepresentation
bin1000001010000…
…00111010011011
311202202021011011
410011000322123
5120004021243
610442314351
71460405623
oct405007233
9152667134
1068423323
1135694501
121aab89b7
1311238c97
149131883
15601889d
hex4140e9b

68423323 has 4 divisors (see below), whose sum is σ = 70272640. Its totient is φ = 66574008.

The previous prime is 68423309. The next prime is 68423357. The reversal of 68423323 is 32332486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32332486 = 216166243.

It is a cyclic number.

It is not a de Polignac number, because 68423323 - 29 = 68422811 is a prime.

It is a super-2 number, since 2×684233232 = 9363502260724658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68423393) by changing a digit.

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, 924603 + ... + 924676.

It is an arithmetic number, because the mean of its divisors is an integer number (17568160).

Almost surely, 268423323 is an apocalyptic number.

68423323 is a deficient number, since it is larger than the sum of its proper divisors (1849317).

68423323 is a wasteful number, since it uses less digits than its factorization.

68423323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849316.

The product of its digits is 20736, while the sum is 31.

The square root of 68423323 is about 8271.8391546258. The cubic root of 68423323 is about 409.0107480990.

The spelling of 68423323 in words is "sixty-eight million, four hundred twenty-three thousand, three hundred twenty-three".

Divisors: 1 37 1849279 68423323