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68190595200 = 273452731359
BaseRepresentation
bin111111100000011110…
…011110100010000000
320112000022122011010000
4333200132132202000
52104123243021300
651154253040000
74632553332000
oct774036364200
9215008564100
1068190595200
1126a128a4502
1211270a86000
136579613920
14342c5b2000
151b9184ac00
hexfe079e880

68190595200 has 1920 divisors, whose sum is σ = 321385680000. Its totient is φ = 14143610880.

The previous prime is 68190595199. The next prime is 68190595217. The reversal of 68190595200 is 259509186.

68190595200 is a `hidden beast` number, since 68 + 19 + 0 + 59 + 520 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 1155772771 + ... + 1155772829.

It is an arithmetic number, because the mean of its divisors is an integer number (167388375).

Almost surely, 268190595200 is an apocalyptic number.

68190595200 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 68190595200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160692840000).

68190595200 is an abundant number, since it is smaller than the sum of its proper divisors (253195084800).

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

68190595200 is a wasteful number, since it uses less digits than its factorization.

68190595200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 68190595200 in words is "sixty-eight billion, one hundred ninety million, five hundred ninety-five thousand, two hundred".