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12878536070400 = 2835271121360917
BaseRepresentation
bin1011101101101000010010…
…0100010101010100000000
31200121011202022200120220020
42323122010210111110000
53142000220213223100
643220152351013440
72466305062261560
oct273320444252400
950534668616806
1012878536070400
114115835961700
12153bb4380a280
137255963cab20
143274784c8da0
15175000e0e5a0
hexbb684915500

12878536070400 has 1296 divisors, whose sum is σ = 57498681432192. Its totient is φ = 2470168166400.

The previous prime is 12878536070381. The next prime is 12878536070441. The reversal of 12878536070400 is 407063587821.

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 211380742 + ... + 211441658.

Almost surely, 212878536070400 is an apocalyptic number.

12878536070400 is a gapful number since it is divisible by the number (10) 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 12878536070400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28749340716096).

12878536070400 is an abundant number, since it is smaller than the sum of its proper divisors (44620145361792).

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

12878536070400 is a wasteful number, since it uses less digits than its factorization.

12878536070400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60988 (or 60958 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 12878536070400 in words is "twelve trillion, eight hundred seventy-eight billion, five hundred thirty-six million, seventy thousand, four hundred".