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68323888 = 2459157461
BaseRepresentation
bin1000001001010…
…00101000110000
311202120012202101
410010220220300
5114442331023
610440230144
71456513003
oct404505060
9152505671
1068323888
1135626826
121aa6b354
1311202949
14910753a
155ee91ad
hex4128a30

68323888 has 40 divisors (see below), whose sum is σ = 135772560. Its totient is φ = 33296640.

The previous prime is 68323883. The next prime is 68323889. The reversal of 68323888 is 88832386.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68323883) 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, 147978 + ... + 148438.

It is an arithmetic number, because the mean of its divisors is an integer number (3394314).

Almost surely, 268323888 is an apocalyptic number.

It is an amenable number.

68323888 is a deficient number, since it is larger than the sum of its proper divisors (67448672).

68323888 is a wasteful number, since it uses less digits than its factorization.

68323888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 679 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 68323888 is about 8265.8265164471. The cubic root of 68323888 is about 408.8125228017.

The spelling of 68323888 in words is "sixty-eight million, three hundred twenty-three thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 59 118 157 236 314 461 472 628 922 944 1256 1844 2512 3688 7376 9263 18526 27199 37052 54398 72377 74104 108796 144754 148208 217592 289508 435184 579016 1158032 4270243 8540486 17080972 34161944 68323888