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68368092 = 22313538269
BaseRepresentation
bin1000001001100…
…11011011011100
311202122110101120
410010303123130
5120000234332
610441210540
71460055612
oct404633334
9152573346
1068368092
1135656a61
121aa90a50
1311219ac0
1491196b2
15600732c
hex41336dc

68368092 has 48 divisors (see below), whose sum is σ = 175059360. Its totient is φ = 20636928.

The previous prime is 68368057. The next prime is 68368093. The reversal of 68368092 is 29086386.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68368093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4134 + ... + 12402.

It is an arithmetic number, because the mean of its divisors is an integer number (3647070).

Almost surely, 268368092 is an apocalyptic number.

It is a pronic number, being equal to 8268×8269.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68368092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87529680).

68368092 is an abundant number, since it is smaller than the sum of its proper divisors (106691268).

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

68368092 is a wasteful number, since it uses less digits than its factorization.

68368092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8342 (or 8340 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 68368092 is about 8268.4999848824. The cubic root of 68368092 is about 408.9006679267.

The spelling of 68368092 in words is "sixty-eight million, three hundred sixty-eight thousand, ninety-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 53 78 106 156 159 212 318 636 689 1378 2067 2756 4134 8268 8269 16538 24807 33076 49614 99228 107497 214994 322491 429988 438257 644982 876514 1289964 1314771 1753028 2629542 5259084 5697341 11394682 17092023 22789364 34184046 68368092