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20760848064 = 263211231091307
BaseRepresentation
bin10011010101011100…
…010110011011000000
31222120212012100120200
4103111130112123000
5320004234114224
613312025005200
71333321203555
oct232534263300
958525170520
1020760848064
118893a59480
124034923800
131c5b1ccca8
14100d37ca2c
1581795c5c9
hex4d57166c0

20760848064 has 336 divisors, whose sum is σ = 68413213440. Its totient is φ = 5957867520.

The previous prime is 20760848063. The next prime is 20760848071. The reversal of 20760848064 is 46084806702.

It is not an unprimeable number, because it can be changed into a prime (20760848063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15883699 + ... + 15885005.

Almost surely, 220760848064 is an apocalyptic number.

20760848064 is a gapful number since it is divisible by the number (24) 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 20760848064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34206606720).

20760848064 is an abundant number, since it is smaller than the sum of its proper divisors (47652365376).

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

20760848064 is a wasteful number, since it uses less digits than its factorization.

20760848064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 20760848064 in words is "twenty billion, seven hundred sixty million, eight hundred forty-eight thousand, sixty-four".