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68287705200 = 2432521121331389
BaseRepresentation
bin111111100110010000…
…111011000001110000
320112021002100211222200
4333212100323001300
52104323123031300
651212042303200
74635142626351
oct774620730160
9215232324880
1068287705200
1126a626a1700
12112994b7b00
136593784b70
14343b44dd28
151b9a12e200
hexfe643b070

68287705200 has 1080 divisors, whose sum is σ = 290309335680. Its totient is φ = 14750208000.

The previous prime is 68287705183. The next prime is 68287705219. The reversal of 68287705200 is 250778286.

68287705200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 215 ways as a sum of consecutive naturals, for example, 175546606 + ... + 175546994.

Almost surely, 268287705200 is an apocalyptic number.

68287705200 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 68287705200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145154667840).

68287705200 is an abundant number, since it is smaller than the sum of its proper divisors (222021630480).

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

68287705200 is a wasteful number, since it uses less digits than its factorization.

68287705200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 68287705200 in words is "sixty-eight billion, two hundred eighty-seven million, seven hundred five thousand, two hundred".