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68284357200 = 24325231709863
BaseRepresentation
bin111111100110000100…
…001001101001010000
320112020212001202101200
4333212010021221100
52104321243412300
651211442431200
74635102313413
oct774604115120
9215225052350
1068284357200
1126a60815264
1211298362500
136592b81cb7
14343ac1bb7a
151b99bbc200
hexfe6109a50

68284357200 has 360 divisors, whose sum is σ = 245238589440. Its totient is φ = 17576524800.

The previous prime is 68284357199. The next prime is 68284357213. The reversal of 68284357200 is 275348286.

68284357200 is a `hidden beast` number, since 6 + 8 + 2 + 8 + 435 + 7 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 79123969 + ... + 79124831.

It is an arithmetic number, because the mean of its divisors is an integer number (681218304).

Almost surely, 268284357200 is an apocalyptic number.

68284357200 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 68284357200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122619294720).

68284357200 is an abundant number, since it is smaller than the sum of its proper divisors (176954232240).

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

68284357200 is a wasteful number, since it uses less digits than its factorization.

68284357200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 68284357200 in words is "sixty-eight billion, two hundred eighty-four million, three hundred fifty-seven thousand, two hundred".