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2688330316320 = 2532511219812047
BaseRepresentation
bin100111000111101100111…
…110010011101000100000
3100112000001100202220011100
4213013230332103220200
5323021200030110240
65415000224314400
7365140221441135
oct47075476235040
910460040686140
102688330316320
11947129419400
12375024472a00
1316667c12052c
1494189d9c58c
1549de2810e30
hex271ecf93a20

2688330316320 has 432 divisors, whose sum is σ = 10614474299520. Its totient is φ = 617414814720.

The previous prime is 2688330316319. The next prime is 2688330316333. The reversal of 2688330316320 is 236130338862.

2688330316320 is a `hidden beast` number, since 2 + 6 + 8 + 8 + 3 + 3 + 0 + 3 + 1 + 632 + 0 = 666.

2688330316320 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 an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2904537 + ... + 3716583.

It is an arithmetic number, because the mean of its divisors is an integer number (24570542360).

Almost surely, 22688330316320 is an apocalyptic number.

2688330316320 is a gapful number since it is divisible by the number (20) 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 2688330316320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5307237149760).

2688330316320 is an abundant number, since it is smaller than the sum of its proper divisors (7926143983200).

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

2688330316320 is a wasteful number, since it uses less digits than its factorization.

2688330316320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812109 (or 812087 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 2688330316320 in words is "two trillion, six hundred eighty-eight billion, three hundred thirty million, three hundred sixteen thousand, three hundred twenty".