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12451843834 = 2171517324137
BaseRepresentation
bin10111001100011000…
…00000111011111010
31012010210100012120021
423212030000323322
5201000133000314
65415330121054
7620365632463
oct134614007372
935123305507
1012451843834
11530a817631
1224b612018a
131235958841
14861a39d6a
154cd275324
hex2e6300efa

12451843834 has 16 divisors (see below), whose sum is σ = 19778580648. Its totient is φ = 5859062272.

The previous prime is 12451843823. The next prime is 12451843841. The reversal of 12451843834 is 43834815421.

12451843834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12288387609 + 163456225 = 110853^2 + 12785^2 .

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 7 ways as a sum of consecutive naturals, for example, 503814 + ... + 527950.

Almost surely, 212451843834 is an apocalyptic number.

12451843834 is a deficient number, since it is larger than the sum of its proper divisors (7326736814).

12451843834 is a wasteful number, since it uses less digits than its factorization.

12451843834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39329.

The product of its digits is 368640, while the sum is 43.

The spelling of 12451843834 in words is "twelve billion, four hundred fifty-one million, eight hundred forty-three thousand, eight hundred thirty-four".

Divisors: 1 2 17 34 15173 24137 30346 48274 257941 410329 515882 820658 366230701 732461402 6225921917 12451843834