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13812812107776 = 2123211108731337
BaseRepresentation
bin1100100100000000101111…
…0000100101000000000000
31210220111021121212210001100
43021000023300211000000
53302302114344422101
645213303540534400
72623641234462333
oct311001360450000
953814247783040
1013812812107776
114445a87376710
1216710229b1400
137927090cb546
1435a787ba661a
1518e482663e86
hexc900bc25000

13812812107776 has 312 divisors, whose sum is σ = 43567405300224. Its totient is φ = 4181716500480.

The previous prime is 13812812107771. The next prime is 13812812107817. The reversal of 13812812107776 is 67770121821831.

13812812107776 is a `hidden beast` number, since 1 + 3 + 81 + 281 + 210 + 7 + 7 + 76 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13812812107771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440767180 + ... + 440798516.

It is an arithmetic number, because the mean of its divisors is an integer number (139639119552).

Almost surely, 213812812107776 is an apocalyptic number.

13812812107776 is a gapful number since it is divisible by the number (16) 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 13812812107776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21783702650112).

13812812107776 is an abundant number, since it is smaller than the sum of its proper divisors (29754593192448).

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

13812812107776 is a wasteful number, since it uses less digits than its factorization.

13812812107776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32465 (or 32440 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 54.

The spelling of 13812812107776 in words is "thirteen trillion, eight hundred twelve billion, eight hundred twelve million, one hundred seven thousand, seven hundred seventy-six".