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12892214845440 = 21335573147127
BaseRepresentation
bin1011101110011011001111…
…1000101110000000000000
31200122111001121201100200000
42323212303320232000000
53142211224000023230
643230333550400000
72500301050040310
oct273466370560000
950574047640600
1012892214845440
1141206151a9867
121542720800000
137269662ba058
14327db5065440
15175551c3eb60
hexbb9b3e2e000

12892214845440 has 2688 divisors, whose sum is σ = 56277816311808. Its totient is φ = 2769082122240.

The previous prime is 12892214845423. The next prime is 12892214845459. The reversal of 12892214845440 is 4454841229821.

12892214845440 is a `hidden beast` number, since 1 + 2 + 8 + 9 + 2 + 2 + 14 + 84 + 544 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2688).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 101513502657 + ... + 101513502783.

It is an arithmetic number, because the mean of its divisors is an integer number (20936687616).

Almost surely, 212892214845440 is an apocalyptic number.

12892214845440 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 12892214845440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28138908155904).

12892214845440 is an abundant number, since it is smaller than the sum of its proper divisors (43385601466368).

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

12892214845440 is an equidigital number, since it uses as much as digits as its factorization.

12892214845440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 12892214845440 in words is "twelve trillion, eight hundred ninety-two billion, two hundred fourteen million, eight hundred forty-five thousand, four hundred forty".