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12213384906240 = 29335725242611
BaseRepresentation
bin1011000110111010011001…
…1110000000011000000000
31121020120212210102110212000
42301232212132000120000
53100101003013444430
641550430201104000
72400250030542540
oct261564636003000
947216783373760
1012213384906240
113989738417191
121453051a88000
136a7942a68b0b
143031b95c1320
15162a714c7e60
hexb1ba6780600

12213384906240 has 320 divisors, whose sum is σ = 49580528785920. Its totient is φ = 2791630725120.

The previous prime is 12213384906209. The next prime is 12213384906287. The reversal of 12213384906240 is 4260948331221.

12213384906240 is a `hidden beast` number, since 1 + 2 + 2 + 13 + 3 + 8 + 4 + 9 + 0 + 624 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 31 ways as a sum of consecutive naturals, for example, 12137466 + ... + 13105145.

It is an arithmetic number, because the mean of its divisors is an integer number (154939152456).

Almost surely, 212213384906240 is an apocalyptic number.

12213384906240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12213384906240 is an abundant number, since it is smaller than the sum of its proper divisors (37367143879680).

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

12213384906240 is an equidigital number, since it uses as much as digits as its factorization.

12213384906240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25242650 (or 25242628 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 12213384906240 in words is "twelve trillion, two hundred thirteen billion, three hundred eighty-four million, nine hundred six thousand, two hundred forty".