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12288559140 = 2233511213172337
BaseRepresentation
bin10110111000111010…
…01000100000100100
31011201102002111002000
423130131020200210
5200131332343030
65351214245300
7613344013014
oct133435104044
934642074060
1012288559140
115236631400
12246b4b6830
13120ab87c90
14848093c44
154bdc6e860
hex2dc748824

12288559140 has 1152 divisors, whose sum is σ = 51351874560. Its totient is φ = 2408693760.

The previous prime is 12288559109. The next prime is 12288559141. The reversal of 12288559140 is 4195588221.

12288559140 is a `hidden beast` number, since 1 + 2 + 2 + 88 + 559 + 14 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12288559141) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 332123202 + ... + 332123238.

It is an arithmetic number, because the mean of its divisors is an integer number (44576280).

Almost surely, 212288559140 is an apocalyptic number.

12288559140 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 12288559140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25675937280).

12288559140 is an abundant number, since it is smaller than the sum of its proper divisors (39063315420).

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

12288559140 is a wasteful number, since it uses less digits than its factorization.

12288559140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 12288559140 in words is "twelve billion, two hundred eighty-eight million, five hundred fifty-nine thousand, one hundred forty".