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12284066520 = 233251153107547
BaseRepresentation
bin10110111000010111…
…11111101011011000
31011201002122020100200
423130023333223120
5200124210112040
65350534102200
7613260562005
oct133413775330
934632566320
1012284066520
115234042aa0
122469aaa960
131209c7411b
148476448ac
154bd683630
hex2dc2ffad8

12284066520 has 384 divisors, whose sum is σ = 44870941440. Its totient is φ = 2889169920.

The previous prime is 12284066513. The next prime is 12284066569. The reversal of 12284066520 is 2566048221.

It is a happy number.

12284066520 is a `hidden beast` number, since 1 + 228 + 406 + 6 + 5 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 22456887 + ... + 22457433.

It is an arithmetic number, because the mean of its divisors is an integer number (116851410).

Almost surely, 212284066520 is an apocalyptic number.

12284066520 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 12284066520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22435470720).

12284066520 is an abundant number, since it is smaller than the sum of its proper divisors (32586874920).

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

12284066520 is a wasteful number, since it uses less digits than its factorization.

12284066520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 12284066520 in words is "twelve billion, two hundred eighty-four million, sixty-six thousand, five hundred twenty".