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68576340 = 223572331229
BaseRepresentation
bin1000001011001…
…10010001010100
311210001001001110
410011212101110
5120023420330
610445455020
71461614010
oct405462124
9153031043
1068576340
1135789468
121ab71470
1311290821
149171540
156048db0
hex4166454

68576340 has 192 divisors, whose sum is σ = 237404160. Its totient is φ = 14446080.

The previous prime is 68576323. The next prime is 68576393. The reversal of 68576340 is 4367586.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 299346 + ... + 299574.

It is an arithmetic number, because the mean of its divisors is an integer number (1236480).

Almost surely, 268576340 is an apocalyptic number.

68576340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68576340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118702080).

68576340 is an abundant number, since it is smaller than the sum of its proper divisors (168827820).

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

68576340 is a wasteful number, since it uses less digits than its factorization.

68576340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 68576340 is about 8281.0832624724. The cubic root of 68576340 is about 409.3154151765.

The spelling of 68576340 in words is "sixty-eight million, five hundred seventy-six thousand, three hundred forty".