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12551216284 = 226151439411
BaseRepresentation
bin10111011000001110…
…00101110010011100
31012101201022211221101
423230013011302130
5201201102410114
65433240042444
7623013402205
oct135407056234
935351284841
1012551216284
11536091a622
122523463424
13125040c7c9
14870d065ac
154d6d53d74
hex2ec1c5c9c

12551216284 has 12 divisors (see below), whose sum is σ = 22324704808. Its totient is φ = 6172729200.

The previous prime is 12551216281. The next prime is 12551216287. The reversal of 12551216284 is 48261215521.

12551216284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12551216281) and next prime (12551216287).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551216281) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25719462 + ... + 25719949.

Almost surely, 212551216284 is an apocalyptic number.

It is an amenable number.

12551216284 is a deficient number, since it is larger than the sum of its proper divisors (9773488524).

12551216284 is a wasteful number, since it uses less digits than its factorization.

12551216284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51439476 (or 51439474 counting only the distinct ones).

The product of its digits is 38400, while the sum is 37.

The spelling of 12551216284 in words is "twelve billion, five hundred fifty-one million, two hundred sixteen thousand, two hundred eighty-four".

Divisors: 1 2 4 61 122 244 51439411 102878822 205757644 3137804071 6275608142 12551216284