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12405514968 = 233271123271359
BaseRepresentation
bin10111000110110110…
…10010001011011000
31012000120011110022100
423203123102023120
5200401302434333
65410553123400
7616264065060
oct134333221330
935016143270
1012405514968
115296654010
1224a26b9560
131229187402
1485981a3a0
154c9173213
hex2e36d22d8

12405514968 has 384 divisors, whose sum is σ = 43993497600. Its totient is φ = 3062188800.

The previous prime is 12405514949. The next prime is 12405514997. The reversal of 12405514968 is 86941550421.

12405514968 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 551 + 4 + 96 + 8 = 666.

12405514968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 95 ways as a sum of consecutive naturals, for example, 34555573 + ... + 34555931.

It is an arithmetic number, because the mean of its divisors is an integer number (114566400).

Almost surely, 212405514968 is an apocalyptic number.

12405514968 is a gapful number since it is divisible by the number (18) 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 12405514968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21996748800).

12405514968 is an abundant number, since it is smaller than the sum of its proper divisors (31587982632).

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

12405514968 is a wasteful number, since it uses less digits than its factorization.

12405514968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 12405514968 in words is "twelve billion, four hundred five million, five hundred fourteen thousand, nine hundred sixty-eight".