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68505846 = 233121092
BaseRepresentation
bin1000001010101…
…01000011110110
311202220110100120
410011111003312
5120014141341
610444152410
71461201333
oct405250366
9152813316
1068505846
1135740502
121ab38706
1311267706
14915398a
156033066
hex41550f6

68505846 has 36 divisors (see below), whose sum is σ = 142884756. Its totient is φ = 21895920.

The previous prime is 68505821. The next prime is 68505847. The reversal of 68505846 is 64850586.

It is a junction number, because it is equal to n+sod(n) for n = 68505798 and 68505807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68505847) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 628440 + ... + 628548.

It is an arithmetic number, because the mean of its divisors is an integer number (3969021).

Almost surely, 268505846 is an apocalyptic number.

68505846 is an abundant number, since it is smaller than the sum of its proper divisors (74378910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68505846 is a wasteful number, since it uses less digits than its factorization.

68505846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 68505846 is about 8276.8258408644. The cubic root of 68505846 is about 409.1751132707.

The spelling of 68505846 in words is "sixty-eight million, five hundred five thousand, eight hundred forty-six".

Divisors: 1 2 3 6 31 62 93 109 186 218 327 654 961 1922 2883 3379 5766 6758 10137 11881 20274 23762 35643 71286 104749 209498 314247 368311 628494 736622 1104933 2209866 11417641 22835282 34252923 68505846