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68094720 = 2832523257
BaseRepresentation
bin1000000111100…
…00101100000000
311202010120101200
410003300230000
5114413012340
610431301200
71454536611
oct403605400
9152116350
1068094720
113548a631
121a97a800
1311152545
149087c08
155ea1330
hex40f0b00

68094720 has 216 divisors, whose sum is σ = 246800736. Its totient is φ = 17301504.

The previous prime is 68094667. The next prime is 68094721. The reversal of 68094720 is 2749086.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68094721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 264832 + ... + 265088.

It is an arithmetic number, because the mean of its divisors is an integer number (1142596).

Almost surely, 268094720 is an apocalyptic number.

68094720 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 68094720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123400368).

68094720 is an abundant number, since it is smaller than the sum of its proper divisors (178706016).

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

68094720 is a wasteful number, since it uses less digits than its factorization.

68094720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 68094720 is about 8251.9524962278. The cubic root of 68094720 is about 408.3549391131.

The spelling of 68094720 in words is "sixty-eight million, ninety-four thousand, seven hundred twenty".