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12000431466 = 232666690637
BaseRepresentation
bin10110010110100100…
…00000110101101010
31010222022221002012200
423023102000311222
5144034102301331
65302442521030
7603244661442
oct131322006552
933868832180
1012000431466
1150a8a26861
1223aab06176
13119328602a
1481bad1122
154a38085e6
hex2cb480d6a

12000431466 has 12 divisors (see below), whose sum is σ = 26000934882. Its totient is φ = 4000143816.

The previous prime is 12000431459. The next prime is 12000431473. The reversal of 12000431466 is 66413400021.

It is an interprime number because it is at equal distance from previous prime (12000431459) and next prime (12000431473).

It can be written as a sum of positive squares in only one way, i.e., 9167105025 + 2833326441 = 95745^2 + 53229^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333345301 + ... + 333345336.

Almost surely, 212000431466 is an apocalyptic number.

12000431466 is an abundant number, since it is smaller than the sum of its proper divisors (14000503416).

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

12000431466 is a wasteful number, since it uses less digits than its factorization.

12000431466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666690645 (or 666690642 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 12000431466 its reverse (66413400021), we get a palindrome (78413831487).

The spelling of 12000431466 in words is "twelve billion, four hundred thirty-one thousand, four hundred sixty-six".

Divisors: 1 2 3 6 9 18 666690637 1333381274 2000071911 4000143822 6000215733 12000431466