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12551434230 = 235418381141
BaseRepresentation
bin10111011000001111…
…11010111111110110
31012101201201220220110
423230013322333312
5201201131343410
65433244443450
7623015300466
oct135407727766
935351656813
1012551434230
115360a59345
122523549586
131250487a7a
14870d61ba6
154d6d98720
hex2ec1faff6

12551434230 has 16 divisors (see below), whose sum is σ = 30123442224. Its totient is φ = 3347049120.

The previous prime is 12551434229. The next prime is 12551434279. The reversal of 12551434230 is 3243415521.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 418381141 = 12551434230 / (1 + 2 + 5 + 5 + 1 + 4 + 3 + 4 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209190541 + ... + 209190600.

It is an arithmetic number, because the mean of its divisors is an integer number (1882715139).

Almost surely, 212551434230 is an apocalyptic number.

12551434230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12551434230 is an abundant number, since it is smaller than the sum of its proper divisors (17572007994).

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

12551434230 is a wasteful number, since it uses less digits than its factorization.

12551434230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418381151.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 12551434230 its reverse (3243415521), we get a palindrome (15794849751).

The spelling of 12551434230 in words is "twelve billion, five hundred fifty-one million, four hundred thirty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 418381141 836762282 1255143423 2091905705 2510286846 4183811410 6275717115 12551434230