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68065069500 = 2234533374987
BaseRepresentation
bin111111011000111111…
…101000100110111100
320111200120102210020000
4333120333220212330
52103344124211000
651134010354300
74626500354601
oct773077504674
9214616383200
1068065069500
1126958a5915a
1211236a2b990
13655960386c
143419a586a8
151b85803000
hexfd8fe89bc

68065069500 has 240 divisors, whose sum is σ = 222767152608. Its totient is φ = 18093196800.

The previous prime is 68065069487. The next prime is 68065069517. The reversal of 68065069500 is 596056086.

68065069500 is a `hidden beast` number, since 6 + 80 + 6 + 5 + 0 + 69 + 500 = 666.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13646007 + ... + 13650993.

Almost surely, 268065069500 is an apocalyptic number.

68065069500 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 68065069500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111383576304).

68065069500 is an abundant number, since it is smaller than the sum of its proper divisors (154702083108).

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

68065069500 is a wasteful number, since it uses less digits than its factorization.

68065069500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355 (or 5334 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 68065069500 in words is "sixty-eight billion, sixty-five million, sixty-nine thousand, five hundred".